Question

Решите уравнение: 4х+2(1-3х)=13

Answer 1

4х+2(1-3х)=13
4х+2-6х=13
-2х=13-2
-2х=11
х=11:(-2)
х=-5,5
4(-5,5)+2(1-3(-5,5))=13
-22+2(1+16,5)=13
-22+2*17,5=13
-22+35=13
13=13

Answer 2

4х+2-6х=13
-2х=11
х=-5.5