Question

b + 2 over 3 - b - 2 over 7 = 2
Solve the equation. b + 2 over 3 - b - 2 over 7 = 2
Solve the equation. @Mathematics

Answer 1

Find the common denominator.

\[\left(\begin{matrix}7b+14\\21 \end{matrix}\right)\] - \[\left(\begin{matrix}9-3b-2 \\ 21\end{matrix}\right)\]

Combine like terms

\[\left(\begin{matrix}7b-3b+14-9-2 \\ 21\end{matrix}\right)\]

\[\left(\begin{matrix}4b+3 \\ 21\end{matrix}\right)=2\]

b=4/21

Answer 2

7b+14-3b-6=42
4b=34
2b=17
b=17/2