Question

3(×-4)-5(×+7)=2-9×
×-(2×+1)=8-3(×+1)​

Answer 1

Respuesta:

Explicación paso a paso:

3(×-4)-5(×+7)=2-9×

3x - 12 - 5x - 35 = 2 - 9x

-47 - 2x = 2 - 9x

-2x + 9x = 2 + 47

7x = 49

x = 49/7

x = 7

×-(2×+1)=8-3(×+1)

x - 2x - 1 = 8 - 3x - 3

-1x - 1 = 5 - 3x

-1x + 3x = 5 + 1

2x = 6

x = 6/2

x = 3