Question

Solve for x. MUST SHOW ALL WORK TO RECEIVE FULL CREDIT! (See picture for equation)

Answer 1

You have to cross multiply to get x on its own
1) Multiply everything by 2.4 
$x= \frac{3 X 2.4}{8}$
2) Then simplify the fraction
 $x= \frac{7.2}{8}$
3) You can either leave the answer as a fraction or you put it as a decimal
x=0.9 

Answer 2

$\frac{x}{2.4} = \frac{3}{8}$

For proportions and to find x we have to cross multiply
8 × (x) = 3 × 2.4

8x = 7.2
Divide by 8 to isolate x

$\frac{8x}{8} = \frac{7.2}{8}$
8 and 8 cancels out

x = 0.9