Question

3(3×-1)=2(3×+2)

7(×-2)=5(×+3)

Answer 1

Resposta:

2,333...; 14,5.

Explicação passo a passo:

3(3× - 1) = 2(3× + 2)

9x - 3 = 6x + 4

9x - 6x = 4 + 3

3x = 7

x = 7 : 3

x = 2,333...

7(× - 2) = 5(× + 3)

7x - 14 = 5x + 15

7x - 5x = 15 + 14

2x = 29

x = 29 : 2

x = 14,5.