2 answers:
Answer:
X = -1, y = 11
Step-by-step explanation:
Reagange the first equation to the y=mx+b form first by subtracting both sides by 3x.
y= -3x + 7
then plug that in for y in the second equation and solve for x.
4x + 2(-3x + 7) =16
distribute the 2
4x - 6x +14 = 16
combine like terms
- 2x + 14 = 16
subtract 14 from both sides
-2x = 2
divide by -2
X= -1
now plug in x = -1 into the first equation to find y.
y= -3(-1) + 7 = 3 + 7 = 11
Answer:
1) 3x=7-y
X=7-y/3
2) 4x=16-y
X=16-y/4
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