Question

3(×-2)=4(-×+3)
2 (×+1)-(×-1)=0
5 (×+1)-3 (×+2)=0 me ajudem nessas 3 por favor

Answer 1

3(x - 2) = 4(-x + 3)

3x - 6 = -4x + 12

3x + 4x = 12 + 6

7x = 18

x = 18/7

2(x + 1) - (x - 1) = 0

2x + 2 - x + 1 = 0

2x - x = - 2 - 1

x = -3

5(x + 1) - 3(x + 2) = 0

5x + 5 - 3x - 6 = 0

5x - 3x = - 5 + 6

2x = 1

x = 1/2