прошу помогите 56+6х=3х-13 4*(3-2х)+24=2*(3-2х)= 0.3*(5х-7)=3*(0.2х+3.2) 7*(2х-5)4*(3-х)-11. Created by Karta2346574. matematika-ru

прошу помогите 56+6х=3х-13 4*(3-2х)+24=2*(3-2х)= 0.3*(5х-7)=3*(0.2х+3.2) 7*(2х...

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прошу помогите
56+6х=3х-13
4*(3-2х)+24=2*(3-2х)=
0.3*(5х-7)=3*(0.2х+3.2)

7*(2х-5)4*(3-х)-11

Answers & Comments

aleksandruklili 56+6х=3х-13
6х-3х=-13-56
3х=-69
х=-69:3
х=-23

4(3-2х)+24=2(3-2х)
12-8х+24=6-4х
12+24-6=8х-4х
30=4х
х=30:4
х=7.5

0.3(5х-7)=3(0.2х+3.2)
1.5х-2.1=0.6х+9.6
1.5х-0.6х=9.6+2.1
0.9х=11.7
х=11.7:0.9
х=13

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