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

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Answer 1 · 2015-12-27T14:42:15

$color(blue)(a=0$

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

$-7cancel(-4a) = -7 +6a cancel(-4a)$

$-7 = -7 +6a$

$cancel(-7) = cancel(-7) +6a$

$0= 0 +6a$

$6a = 0$

$a = 0/6$

$color(blue)(a=0$

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