Question

9 b + 42 = -12

Answer 1

9b + 42 = -12
9b = -12 -42
9b = -54
b = -6

Answer 2

Step 1: Subtract 42 from both sides.

\(\Large \color{midnightblue}{\rightarrow 9b = -54 }\)

Step 2: Divide both sides by 9.

\(\Large \color{midnightblue}{\rightarrow b = -54 \div 9 }\)
\(\Large \color{midnightblue}{\rightarrow b = -6 }\)

Answer 3

And that's how you get the answer :)