How do you solve $2a + 4= - 8- 4a$ ?

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Answer 1 · 2016-10-17T01:30:04

Separate and move the variables to one side of the equal sign and the other numbers to the opposite side.

$a = -2$

$2a + 4 = - 8 - 4a" "$ Adding 4a to both sides becomes

$6a + 4 = - 8$

It's a negative $4a$ and you need a positive to cancel a negative.

Then subtract 4 from both sides so the equation then changes to

$6a = - 12$

Finally, you divide both sides by 6 to isolate $a$

The answer is $a = - 2$

How do you solve 2a + 4= - 8- 4a2a + 4= - 8- 4a?