# How do you solve -7 - 4a = -7 + 6a - 4a?

Dec 27, 2015

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#### Explanation:

$- 7 - 4 a = - 7 + 6 a - 4 a$

$- 7 \cancel{- 4 a} = - 7 + 6 a \cancel{- 4 a}$

$- 7 = - 7 + 6 a$

$\cancel{- 7} = \cancel{- 7} + 6 a$

$0 = 0 + 6 a$

$6 a = 0$

$a = \frac{0}{6}$

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