x+18=2y, y=2x-9 (find with determinant camer's rule)
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Answer:
Answer:x=12 & y=15
Step-by-step explanation:
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Answer:
x+18/2=y y=2x-9
x/2+9=y y=2x-9
x/2+9=2x-9
18=x/2+2x
18=x+4x/2
18=5x/2
5x=36
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