Question

A raiz da equação 3x/4 =x+20/8 e 5x-4=10-2x

Answer 1

3x/4=x+20/8
8(3x)=4(x+20)
24x=4x+80
24x-4x=80
20x=80
x=80/20
x=4

5x-4=10-2x
5x+2x=10+4
7x=14
x=14/7
x=2