Question

решите уравнение 3·(5-х)+13=4·(3х-8)

Answer 1

15 - 3x + 13 = 12x - 32
28 + 3x = 12x - 32
60 = 9x
X~ 6,6

Answer 2

3·(5-х)+13=4·(3х-8)
15-3х+13=12х-32
28-3х=12х-32
-12х-3х=-28-32
-15х=-60
х=-60:(-15)
х=4