waecmaths question:
Solve $\frac{y+1}{2}-\frac{2y-1}{3}=4$
Option A:
y = 19
Option B:
y = −19
Option C:
y = −29
Option D:
y = 29
waecmaths solution:
$\begin{align} & \frac{y+1}{2}-\frac{2y-1}{3}=4 \\ & \frac{3(y+1)-2(2y-1)}{6}=4 \\ & \frac{3y+3-4y+2}{6}=4 \\ & \frac{5-y}{6}=4 \\ & 5-y=24 \\ & y=5-24 \\ & y=-19 \\\end{align}$
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