overwatchpotg overwatchpotg

06-07-2018
Mathematics

contestada

Use addition to solve the linear system of equations. Include all of your work in your final answer.
x - y = 4 x + 2y = 4

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mkryukova19 mkryukova19

06-07-2018

(x - y = 4) *(-1)
x + 2y = 4

-x+y=-4
x + 2y = 4
3y =0
y = 0

x-y =4
x-0=4
x=4

x=4, y=0

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