Question

Alguém me ajuda heeeeelp
6x+5=60
9x-5=75
6x+5x=110
20x130x=600
5x+2x+2x=1000

Answer 1

Resposta:

1) 6x+5=60

6x=60-5

6x=55

×=55/6

x= 9,1

2)

9x-5=75

9x=75+5

9x=80

x=80/9

×=8,88

3)

6x+5x=110

11x=110

x=110/11

×=10

4)

20x+130x=600

150x=600

x=600/150

x=4

5)

5x+2x+2x=1000

9x=1000

x=1000/9

x=111,11