Question

For the equation: $3z+\frac{7}{2}$ = $\frac{5}{2}$, '$z$' is equal to ____ ?

• A. $\frac{1}{3}$
• B. $\frac{-1}{3}$
• C. $\frac{-2}{3}$
• D. $\frac{2}{3}$

Answer 1

The correct option is B

$\frac{-1}{3}$

$\Rightarrow 3z+\frac{7}{2}=\frac{5}{2}$

$\Rightarrow 6z+7=5$

$\Rightarrow 6z=-2$

$\Rightarrow z=\frac{-1}{3}$