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3 years ago

What’s the solution to -5x-y=21 when y is equal to 6+4x

Mathematics

1 answer:

agasfer [191]3 years ago

3 0

Answer:

x= -3, y=-6

Step-by-step explanation:

In the equation -5x-y=21, substitute y for 6+4x:

-5x- (6+4x) = 21

^^Solve for x.

X should come out to -3. To find y, plug -3 into either equation (-5x-y=21 or y=6+4x) and y should equal -6.

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