Question

Solve the following:
(a) $5x+8=23$ (b) $2y-4=-8$ (c) $2(t+1)+15=3$ (d) $-y+46=32$ (e) $2x+3=3$

Answer 1

(a) $5x+8=23$

$\Rightarrow 5x=23-8$

$\Rightarrow 5x=15$

$\therefore x=3$

(b) $2y-4=-8$

$\Rightarrow 2y=-4$

$\therefore y=-2$

(c) $2(t+1)+15=3$

$\Rightarrow 2(t+1)=-12$

$\Rightarrow t+1=-6$

$\therefore t=-7$

(d) $-y+46=32$

$\Rightarrow y=46-32$

$\therefore y=14$

(e) $2x+3=3$

$\Rightarrow 2x=0$

$\therefore x=0$