How to do substitution

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asked Dec 2, 2018 28.3k views

1 Answer

Melros · Answer 1 · 2018-12-08T17:37:10+0000

you solve for one variable like
y-5x=2
"y=5x+2"

9x+3y=58
and you plug it in into the other equation
9x+3(5x+2)=58

You solve for x and then plug in your answer for x into the other equation
*let's imagine x=8*
then:
y-5(8)=2
and solve for y
:D

How to do substitution

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