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27-05-2020
Mathematics

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Solve by substitution
y = -5x -8
2x + 7y = 10

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aleksaandrijasevic aleksaandrijasevic

27-05-2020

x=-2

y=2

_________

Step-by-step explanation:

get the upper x on the opposite side or to be with y

5x+y=-8 / *(-7)

2x+7y=10

__________

-35+2x=56+10

2x+7y=10

__________

-33x=66 x=-2

-4+7y=10

y=2

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