Question

-112=-8b-7(b+1)
show steps please.
answer: 7

Answer 1

Made a mistake, one sec.

Answer 2

lol(:

Answer 3

\[-112=-8b-7b-7\] is the first step, i.e. multiply out using distributive law

Answer 4

We have:
\[-112=-8b-7(b+1)\]
Multiply the 7 through:
\[-112=-8b-7b-7\]
Combine like terms:
\[-112=-15b-7\]
Multiply everything by -1:
\[112=15b+7\]
Substract 7:
\[105=15b\]
Divide by 15:
\[7=b\]
so,
\[b=7\]