Question

Quanto é
1) 4×+1=4
2)3×-1=6
3)9×+2=5-×

Answer 1

Resposta:

$4x + 1 = 4 \\ 4x = 4 - 1 \\ 4x = 3 \\ x = \frac{3}{4}$

$3x - 1= 6 \\ 3x = 6 + 1 \\ 3x = 7 \\ x = \frac{7}{3}$

$9x + 2 = 5 - x \\ 9x + 1x = 5 - 2 \\ 9x = 3 \\ x = \frac{9}{3}$