Asked by lisa
use substitution to solve the linear system
3x-y=15
x+2y=-2
Solve for y in one formula, and then substitute that value for y in the other formula to solve for x. Once you find x, substitute that value into either formula to get the value for y.
2y = -2 - x
y = (-2-x)/2 = -1 - x/2
I will let you do the rest.
I hope this helps. Thanks for asking.
3x-y=15
x+2y=-2
Solve for y in one formula, and then substitute that value for y in the other formula to solve for x. Once you find x, substitute that value into either formula to get the value for y.
2y = -2 - x
y = (-2-x)/2 = -1 - x/2
I will let you do the rest.
I hope this helps. Thanks for asking.
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