Question

Solve the given equation. Check your solution.

3|2a + 7| =3a + 12

Answer 1

6a+21=3a+12
3a=-9
a=-3

Answer 2

divide by 3 first

Answer 3

wait I'm not sure

Answer 4

yeah, that is not right

Answer 5

3(2a+7)=3a+12
-3(2a+7)=3a+12

Answer 6

yeah I forgot to split it

Answer 7

Lost connection -_-

Answer 8

start with
\[|2a+7|=a+4\]

Answer 9

^lol yea, that's a pretty good advice

Answer 10

then if \(a>-\frac{7}{2}\) you have \(|2a+7|=2a+7\) solve
\[2a+7=a+4\] in two steps

Answer 11

if \(a<-\frac{7}{2}\) you have \(|2a+7|=-2a-7\) solve
\[-2a-7=a+4\] again in two steps