10x+12-x-[10(12-x)+x]=18
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Answer:
x=2
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Answer:
x=7
Step-by-step explanation:
10x + 12 -x-[10(12-x)+x]= 18
10x + 12 -x-[120 - 10x + x]= 18
10x + 12 -x-120 + 10x - x = 18
18x = 18 - 12 + 120
= 126
x= 126÷18=7
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