Step-by-step explanation:
[tex] \frac{5}{2} = \frac{x - 4}{3} [/tex]
[tex]3 \times \frac{5}{2} = \frac{x - 4}{3} [/tex]
[tex] \frac{3}{1} \times \frac{5}{2} = \frac{x - 4}{3} [/tex]
cross multiplication
[tex] \frac{6 \times 5}{2} = \frac{x - 4}{3} [/tex]
[tex] 15 = \frac{x - 4}{3} [/tex]
[tex]15 \times 3 = x - 4[/tex]
[tex]45 + 4 = x[/tex]
[tex]49 = x[/tex]
