Question

Resolva a equação 3x+4=5x-1/2

Answer 1

$3x + 4 = 5x - \frac{1}{2} \\ 3x - 5x = - \frac{1}{2} - 4 \\ \frac{6x - 10x = - 1 - 8}{2} \\ 6x - 10x = - 1 - 8 \\ - 4x = - 9 \times ( - 1) \\ 4x = 9 \\ x = \frac{9}{4} \\ x = 2.25$