Y=-1,X+2y=9 solve by substitution show all work

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Naghal asked Sep 1, 2022

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Y=-1,X+2y=9 solve by substitution show all work

Mathematics
high-school

Naghal asked Sep 1, 2022

by Naghal

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1 Answer

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Answer:

x = 11

Explanation:

Substitute y = -1 into the equation.

x+2y = 9

; x+2(-1) = 9

x+(-2) = 9

x-2 = 9

x = 9+2

x = 11

Noririco answered Sep 7, 2022

by Noririco

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