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if you have one equation that gives you x or y
use substitution
x+3y=18
x= 18-3y
substitute (18-3y) for x in the other equation
if you have coefficients that will not 'reduce'
use elimination
2x+3y= -3
5x-4y=9
watch for equations that will reduce
2x+4y= -8
divide through by 2
x+2y= -4
x= -4-2y
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What is the difference between sum and difference?
sum is addition difference is subtraction
What is the difference between the inverse of addition and the inverse of multiplication?
the inverse of addition is subtraction and the inverse of multiplication is division. Of course, multiplication is just repeated addition so division is just repeated subtraction!
What is the difference between 392 and 247?
What is the difference between 392 and 247?
What is the difference between two numbers is 10 If the numbers are doubled what is What is the difference between them?
the difference is also doubled
What number represents the difference between two equal fractions?
There is no difference in value between "equal" fractions: the difference is zero.
Difference between export promotion and import substitution?
what is d difference between import substitution and export promotion
Is reaction between ethanoic acid sodium hydroxide an eliminatin substitution addition or rearrangement.?
The reaction between ethanoic acid and sodium hydroxide is a neutralization reaction, in which an acid reacts with a base to form a salt and water. It is not classified as elimination, substitution, addition, or rearrangement.
Difference between substitution and transposition cipher?
The difference between substitution and transposition is that in:Subtitution:each letter retains its position but changes its identity,Transposition:each letter retains its identity but changes its position.
What is the difference between substitution reaction and addition reaction?
In a substitution reaction, one group is replaced by another in a molecule, while in an addition reaction, two or more reactants combine to form a single product. Substitution reactions typically involve the exchange of an atom or group with another, while addition reactions involve the addition of atoms or groups to an unsaturated molecule to form a saturated product.
What is the difference between sum and difference?
sum is addition difference is subtraction
What is the difference between gauss elimination and gauss Jordan?
Gaussian elimination as well as Gauss Jordan elimination are used to solve systems of linear equations. If, using elementary row operations, the augmented matrix is reduced to row echelon form, then the process is called Gaussian elimination. If the matrix is reduced to reduced row echelon form, the process is called Gauss Jordan elimination. In the case of Gaussian elimination, assuming that the system is consistent, the solution set can be obtained by back substitution whereas, if the matrix is in reduced row echelon form, the solution set can usually be obtained directly from the final matrix or at most by a few additional simple steps.
What is the difference between vector addition and algebraic addition?
There is no difference between vector addition and algebraic addition. Algebraic Addition applies to vectors and scalars: [a ,A ] + [b, B] = [a+b, A + B]. Algebraic addition handles the scalars a and b the same as the Vectors A and B
What is the difference between the substitution method and the linear combination method?
well,both are different methods but the answers are same.
What is the difference between drug elimination and excretion?
Elimination is carried out by 2 process - biotransformation and - excretionExcretion means complete removal of drug and its metabolites from internal nvironment to external enviroment.
What is the difference between value and value addition?
One says value and the other has addition on the end.
Is there a difference between lemon sun in and the original?
The difference between SunIn and lemon SunIn is the addition of some form of lemon.
What is the difference between generic substitution and therapeutic substitution?
Generic substitution involves dispensing a generic version of a drug in place of its brand-name equivalent, while therapeutic substitution involves replacing a prescribed medication with another drug that has a similar therapeutic effect. Generic substitution focuses on using chemically equivalent alternatives, whereas therapeutic substitution considers different but therapeutically similar options.
