estermiriam84u estermiriam84u

30-01-2021
Mathematics

contestada

Solve the system by substitution.
y= -x
10x+2y=40

Respuesta :

nigi2911 nigi2911

30-01-2021

y = -x
10x+2y = 40

You sub y= -x

10x+2(-x) = 40

And the answer is x=5

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