Question

1)Resolva as questões:

a)5 (x+12)=x b)4 (x-1)=2 (x-4)

c)4x-7=5× d)3x-2x-5=10
3 3 3

Alguém me ajuda por favor!!!!!​

Answer 1

Resposta:

a)5 (x+12)=x

5x+60=x

5x -x=-60

4x=60

x=60/4

x=15

b)4 (x-1)=2 (x-4)

4x-4=2x-8

4x-2x= -8+4

2x=-4

x= -4/2

x= -2

c)4x-7=5×

4x-5x=7

-x= 7

d)3x-2x-5=10

3x-2x=10+5

x=15

3 3 3 ???