Question

0.24(18)

+0.04x=0.08(24+x)

Answer 1

first reduce the bracket:
0.08(24+x)=0.08(24)+0.08x=1.92+0.08x
next place like terms together:
0.24(18)-1.92 = 0.08x-0.04x
4.32-1.92=0.08x-0.04x
2.4=0.04x
now divide the entire equation by 0.04 since you wish to find x:
2.4/0.04=0.04x/0.04(0.04/0.04=1;2.4/0.04=60

thus x = 60