Hi,
Equation;
[tex] - 17 = \frac{2y}{3} + \frac{3y}{4} [/tex]
Solving:
[tex] - 17 = \frac{2y}{3} + \frac{3y}{4} \: \: \: | \div 12 \\ - 204 = 8y + 9y \\ - 204 = 17y \\ 17y = - 204 \: \: \: | \div 17 \\ \\ y = - 12 \: \: \: \: \: \: \: \: (result)[/tex]
Hope this helps.
r3t40