Question

12-7(х-4)=3х+4 решите уравнение

Answer 1

12-7x+28 = 3x+4
12+28-4 = 3x+7x
36 = 10x
x = 36/10
x = 3,6

Answer 2

12-7х+28=3х+4
40-7х=3х+4
40-4=3х+7х
10х=36
х=36÷10
х=3.6