Question

resolva:

-3 (3x - 42) =2 (7x - 52)

x/2 + 1-x/5 = 1/2

x+3/2 + x+2/3 = -1/2

Answer 1

Resposta:

11,5

Explicação passo-a-passo:

-6x - 126 = 14x - 104

-6x -14x = 104 + 126

-20x = 230

x = 230/20

x = 11,5

x/2 + 1 - x/5= -1/2

5x/10 + 10/10 - 2x/10 -5/10

5x + 10 - 2x = -5

5x - 2x = -5 - 10

3x = -5

x = -5/3

x = -1,666...

x/1 + 3/2 + x/1 + 2/3 = -1/2

6x/6 + 9/6 + 6x/6 + 4/6 = -3/6

6x + 9 + 6x + 4 = -3

6x + 6x = -3 - 4 - 9

12x = -16

x = -16/12

x = -1,333...