Okay, you just asked a VERY long-winded answer question my friend. Alright here is an example question. 2x-1=y+5, y-1=x-5 Solve for x or y, which ever is easiest, first. y-1=x-5 y=x-4 Now plug in y in the other equation. 2x-1=y+5 2x-1=(x-4)+5 2x-1=x+1 2x=x+2 x=2 Now, plug in x in the previous equation that you substituted with first. y=x-4 y=2-4 y=-2 So, the answer to this equation is... x=2, y=-2 I know this might seem complicated but stick with it and don't give up. When you start doing questions you havce to think "I'm gonna get this, easy!" The way you set your mind before doing something will effect the outcome! Good luck! PS--- Here's how to check your answer. Get your two original questions. 2x-1=y+5, y-1=x-5 ... and plug in your answers to see if it checks out right! Here's how. 2x-1=y+5 2(2)-1=-2+5 4-1=3 3=3 Yay, we were right! Now for the other one... y-1=x-5 -2-1=2-5 -3=-3 WooHoo, we were right again! This proves that x=2, y=-2 was indeed the correct answer.
You use algebra and solve the system(s) of equations using techniques such as elimination or substitution.
I have taken Algebra I and made an 99 easily. You must learn to memorize how to solve equations and various formulas. Be prepared to right out long equations and use substitution and elimination to simplify equations. Also, pay attention in class.
There is not Substitution Property of Congruence. There is, however, one for Equality, called the Substitution Property of Equality.
"A slogan for the elimination method in algebra could be 'Combine and conquer!' This highlights the strategy of adding or subtracting equations to eliminate variables. For the substitution method, a slogan like 'Swap and solve!' could emphasize the idea of substituting expressions to find the solution."
foundations algebra is probably pre algebra, which is before algebra, so no.
Its an algebra property(: ask someone else cause i got no idea!
Substitution in algebra refers to substituting numbers in place of letters Let me give you an example If X=3, and we were given this > (Find 3X+5) we would substitute 3 in the place of X so (3x3)+5= 9 + 5 = 14 Gd luck U
Graphing is not necessarily easier than elimination or substitution. If you are good at drawing graphs, and do not like algebra, then graphing is easier. However, elimination and substitution are much faster, and graphing can often get awkward when working with more complicated formulae.
You use algebra and solve the system(s) of equations using techniques such as elimination or substitution.
Substitution is used in Systems of Linear Equations. When you have two equations, such as y=3x+1 and 2y+5=9x+1, then substitution can be used. 2y could be substituted with 2(3x+1). You would have now the equation 6x+2=9x-1, which is more solvable.
I have taken Algebra I and made an 99 easily. You must learn to memorize how to solve equations and various formulas. Be prepared to right out long equations and use substitution and elimination to simplify equations. Also, pay attention in class.
http://www.algebra.com/algebra/homework/Linear-equations/Linear-equations.faq.question.121634.html visit.
pros; you will learn to be smarter. cons; you will waste ALL your time, get angry, and punch your teacher for making you do the work.
replace a variable with another equation. ex. 2x + 3 = ? and x = 5. you would replace the x in the equation with 5 since x = 5. so it would be 2(5) + 3 = ?. simplify it out and it would be 13. now substitution can get way more complicated than that but that should be a helpful guide.
substitution menthod
marginal rate of substitution
I can give you several sentences.Use that ingredient as a substitution for the one you don't have.He is going in as a substitution for the quarterback.This is a substitution for the real thing.Margarine could be used as a substitution.