Question

Olá vcs podem me ajudar a calcular essa conta por favor

Answer 1

a)5x=x-4

5x-x=4

4x=4

x=4/4

x=1

b)2x+6=x

2x-x=-6

x=-6

c)3x+8+2x=3

5x=3-8

5x=-5

x=-5/5

x=-1

d)7x+9-2x=20+4x

5x-4x=20-9

x=11