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17-11-2015
Mathematics

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How do you find "a" in -10+a=6a-7a please help I do not know how to find what the answer is.

Respuesta :

17-11-2015

-10 + a = 6a - 7a

Rearrange the left hand side

a - 10 = 6a - 7a

Simplify 6a - 7a

a - 10 = -a

Add a on both sides

2a - 10 = 0

Add 10 on both sides

2a = 10

Divide by 2 on both sides

a = 5

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