Question

решите уравнение 3х+4=5х-7​

Answer 1

$3x + 4 = 5x - 7 \\ x = 5.5 \\ 3x - 5x = - 7 - 4 \\ - 2x = - 11 \\ x = \frac{11}{2} = 5.5$

Answer 2

3х+4=5х-7

3х-5х=-7-4

-2х=-11

х=-11/-2 = -5 1/2