Question

$\text{If}3(t-3)=5(2t+1),\text{then t=?}$

(a) -2

(b) 2

(c) -3

(d) 3

Answer 1

$3(t-3)=5(2t+1)\Rightarrow 3t-9=10t+5\Rightarrow 3t-10t=5+9\Rightarrow -7t=14\Rightarrow t=\frac{14}{-7}=-2\therefore t=-2$