Answer
$a=2\frac{1}{3}$
Work Step by Step
$3a=7$
$3a\div3=7\div3\longrightarrow$ divide both sides by 3
$a=\frac{7}{3}$
$a=2\frac{1}{3}$
To check, substitute the value for x and see of the result is true.
$3(2\frac{1}{3})=7$
$6+\frac{3}{3}=7$
$7=7\checkmark$
