How can you decide which variable to solve for first when you are solving a linear system by substitution

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asked Jan 6, 2017 87.9k views

2 Answers

Fdsaas · Answer 1 · 2017-01-10T10:29:43+0000

there are many factors, it is all a matter of preference, normally, you want to try to solve for the easiest one to get to
example

if y ou had

(x-3)^2+y=9
you would solve for y becuase it is less tricky

it is all a matter of preference

How can you decide which variable to solve for first when you are solving a linear system by substitution

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