02-05-2017
Mathematics

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I don't know how to do the math to solve these problems.

I dont know how to do the math to solve these problems class=

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02-05-2017

11,13,14 ,16make it =180. 12,15 make then equal to each other

11. The 11x-10+80=180
11x +70=180
Subtract 70
11x= 110
Divide by 11
X=10

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