Solve the system using substitution. Show your work.
x = -4y + 9
x - y = 4
2 answers:
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 !!
Answer:
please what should we found? is it the value of ×or y
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