Question

решите уравнение : 4х+ 2(1-3х)=13

Answer 1

1-3х=4х+2-13
4х -3х=1+2+13
1х=16
х=16÷1
х=16

Answer 2

4x+2(1-3x)=13
4x+2-6x=13
4x-6x=13-2
-2x=11
x=11:(-2)
х=-5,5