aumunique38 aumunique38

10-12-2019
Mathematics

contestada

State which method you would use to solve the following system of equations
substitution, elimination) and justify your reasoning. Then solve the system.
X-y=-2
2x + 4y = 38
Which method would you use?
Why?
Solve the system...

Respuesta :

leedle01 leedle01

10-12-2019

elimination
first i would divide the second equation by -2.
x - y = -2
-x- 2y = -19
the x is eliminated.
-3y = -21
divide each side by -3.
y = 7
plug 7 in for y to solve for x
x-7 = -2
x = 5
(5,7)

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