42=(2w-6)+(2w-6)+w+w
42=6w-12
54=6w
w=9
42=2l+18
24=2l
l=12
length= 12cm, width= 9cm
Answer: x=2 and y=-1
Step-by-step explanation:
Answer:
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Step-by-step explanation:
the answer is 4
Y = -4x
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