Question

Найдите корень уравнение                                                         
1) 4(x-3)=x+6                      2) 4-6(x+2)=3-5x                        3) (5x+8)-(8x+14)=9

Answer 1

1) 4х-12=х+6
4х-х=12+6
3х=18
х=6

2)4-6(х+2)=3-5х
4-6х-12=3-5х
-6х+5х=-4+12+3
-х=11
х=-11

3)(5х+8)-(8х+14)=9
5х+8-8х-14=9
-3х-6=9
-3х=15
-х=5
х=-5