Question

A) x+3/2=4
B) x/2+x/3=5

Answer 1

a)

$x + \frac{3}{2} = 4 \\ x = 4 - \frac{3}{2} \\ x = \frac{5}{2}$

b)

$\frac{x}{2} + \frac{x}{3} = 5 \\ ( \frac{1}{2} + \frac{1}{3} )x = 5 \\ x = 5 \div \frac{5}{6} \\ x = 5 \times \frac{6}{5} \\x = 6$