Question

Срочно!!!!!!!!!Срочно!!!!!!!!

Answer 1

3(2х-11)=-21;

6х-33=-21;

6х=-21+33;

6х=12;

х=12:6;

х=2;

-2(5-2х)=-14;

-10+4х=-14;

4х=-14+10;

4х=-4;

х=-4:4;

х=-1;

-5(х+3)+3=-17;

-5х-15+3=-17;

-5х=-17+15-3;

-5х=-5;

х=1;

0.4х+12=-0.16;

0.4х=-0.16-12;

0.4х=-12.16;

х=30.4;

|2х|+1=6;

2х+1=6;

2х=6-1;

2х=5;

х=5:2;

х=2.5;

|5х-4|=8

5х+4=8;

5х=8-4;

5х=4;

х=5:4;

х=1.25;

Answer 2

Ответ:

Пошаговое объяснение:

3(2х-11)＝-21

6х-33＝-21

6х＝-21+33

6х＝12

х＝12/6

х＝2;

-2(5-2х)＝-14

-10+4х＝-14

4х＝-14+10

4х＝-4

х＝-1;

-5(х+3)+3＝-17

-5х-15+3＝-17

-5х＝-17+15-3

-5х＝-5

х＝-5/-5

х＝1;

0.4х+12＝-0.16

0.4х＝-0.16-12

0.4х＝-12.16

х＝-12.16/0.4

х＝30.4;

[2х]+1＝6

[2х]＝6-1

[2х]＝5

[х]＝5/2

х＝2.5;