What is the answer to x in 180-x=10+2(90-x)

asked Jan 13, 2015 156k views

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180 - x = 10 + 2(90-x)
180 - x = 10 + 180 - 2x
180 - x = 190 - 2x
180 = 190 -1x
-10 = -1x

10 = x

My Work answered Jan 14, 2015

8.2k points

4 votes

$180-x=10+2(90-x)\ \ \ \ \ |Omit\ the\ bracket\\\\ 180-x=10+180-2x\ \ \ |Add\ 2x\\\\ 180+x=190\ \ \ |Subtract\ 180\\\\ x=10\\\\Solution\ is\ x=10.$

Jkitchen answered Jan 18, 2015

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