Question

1. 1/2x-4=1/3x-2
2.y-7/2 - 1/3=y-7/3
3.0,2(x-50)=20-0,05x

Answer 1

(1) 1/2x - 4= 1/3x - 2
x/2 -x/3 = 4-2
3x/6 - 2x/6 = 2
x/6 = 2
x = 2×6 = 12

(3) 0,2(x-50)=20-0,05x
0,2x - 10 = 20-0,05x
0,2x+0,05x = 20+10
0,25x = 30
x = 30/0,25 = 120