x × 10 + (12-x) =(12-x) × 10 + x + 18
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10x +12-x=120-10x+x+18
9x+12=120-9x+18
9x+9x = 138-12
18x=126
x=126/18
x=7
hope it helps u :)
zoha2004:
can u plz mark it as brainliest :)
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