Question

2×+8=-×+13$2×+8=‐×+13$

Answer 1

a) $4x-2=30$

$4x=30+2$

$4x=32$

$x=\frac{32}{4}$

$x=8$

b) $9x=7x+18$

$9x-7x=18$

$2x=18$

$x=\frac{18}{2}$

$x=9$

c) $5x-1=4x+11$

$5x-4x=11+1$

$x=12$

d) $2x+8=-x+13$

$2x+x=13-8$

$3x=5$

$x=\frac{5}{3}$