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3 years ago

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Solve the system using substitution. Show your work. x = -4y + 9 x - y = 4

2 answers:

lesya692 [45]3 years ago

7 0

X = -4y + 9
x - y = 4

- rearrange the second equation to x = 4 + y
- then we can plug it into x for the first equation

4 + y = -4y + 9 — then we solve for y
y = -4y + 5
5y = 5 -> y = 1

we can then plug in 1 (our y value) into the original second equation.

x - 1 = 4 -> x = 5

x = 5 & y = 1
you should put it in a coordinate layout so:
(5,1)

hope this helped !!

FromTheMoon [43]3 years ago

6 0

Answer:

please what should we found? is it the value of ×or y

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