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i am guessing here that this is what you mean as it involves substitution:
2x-2y = 4
therefore -2y = 4 - 2x
Sub the above line into the first equation gives:
13x - 2x +4 = 70
11x = 66
x=6
then sub in x
13(6) - 2y = 70
78 - 2y = 70
y=4
Yep, this is the exact same as simultaneous equations
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What is the advantage of using the method of substitution rather than using a graph?
Accuracy.
Solve using substitution x minus y equals 2 and x plus y equals -4?
-2
Can quadratic systems be solved using elimination and substitution?
You can solve lineaar quadratic systems by either the elimination or the substitution methods. You can also solve them using the comparison method. Which method works best depends on which method the person solving them is comfortable with.
What is the disadvantage of using the substitution method in solving linear equations rather than the graph method?
There are no disadvantages. There are three main ways to solve linear equations which are: substitution, graphing, and elimination. The method that is most appropriate can be found by looking at the equation.
If Using substitution method to solve the equation y equals 8x plus 3 and y equals 7?
This is not Calculus.y=7(Already solved)substiute y=7 into y=8xtherefore 7 = 8xtherefore x = 7/8
What is the answer for the ordered pair form x plus 7y equals 39 3x minus 2y equals 2 using substitution?
If you mean: x+7y = 39 and 3x-2y = 2 Then by substitution: x = 4 and y = 5
What is the derivative of -cscxcotx?
Using the u substitution method of derivation (selecting sinx as u and cosxdx as du), you get f'(x)=cscx.
How do you solve a problem using the substitution method?
You solve this by theoretically diverting the hypotenuse of the x divided by the overall beneficial procedure of y
What does GUESS stand for when using the guess method?
G-Given U-Unknown E-Equation S-Substitution S-Solve
What 4x y14 and 2x y8 solve using substitution?
You cant solve it unless it is an equation. To be an equation it must have an equals sign.
What is 2x plus 3y equals -1 5x-2y plus -12 using substitution?
x = -2 and y = 1
When using the substitution method to solve a nonlinear system of equations you should first see if you can one variable in one of the equations in the system?
isolate
