Question

$$\left. \begin{array} { l } { \frac { 2 } { 4 } } \\ { 21 } \\ { \frac { 2 x } { 3 } + 1 = 5 , x } \\ { \frac { 2 x } \right.$$

Solve for x, y, z, a

$y=\frac{1}{2}=0.5$
$z=21$
$a=6$

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