Question

Resolva as equações
9x + 120=300

2 x + 5 = 120

6x-11=5x-3

10x+6=8x

8x-5-5=-2x+1​

Answer 1

Resposta:

9x + 120 = 300

9x= 300 - 120

9x = 180

x= 180 ÷ 9

x= 20

2x + 5 = 120

2x= 120-5

2x = 115

x = 115 ÷2

X= 57,5

6x - 11= 5x -3

6x - 5x = -3+11

x = 8

10x +6= 8x

10 x - 8x= - 6

2x = - 6

x= -6/2

x= -3

8x -5-5 = 2x+1

8x-10 = 2x+1

8x-2x = 1+10

6x = 11

x= 11/6

x= 1,8333...

Explicação passo-a-passo: