Question

РЕШИТЕ УРАВНЕНИЯ:
1) 3(х+5)=7-5х;
2) 4(х-9)=3(х-8);
3) 7(3-2х)=15(1-х);
4) 13-(2х-5)=х-3;
5) 26-(17-2х)=5х;
6) 19-2(3х+8)=2х-37;
7) 23-4(3х+8)=1-17х.
РЕШИТЕ пожалуйста, заранее спасибо!1!!11!1!!♡

Answer 1

1)3х+15 = 7 -5х
3х +  5х = -15 +7
8х = -8
х = -1

2)4х - 36 = 3х - 24
4х - 3х = 36-24
х = 12

3)21 - 14х = 15 - 15х
-14х + 15х = -21 + 15
х = -6

4)13 - 2х +5 = х-3
-2х - х = -13 - 5 -3
-3х = -21
3х = 21
х = 7

5)26 - 17 + 2х = 5х
2х - 5х = -26+17
-3х =  -6
3х = 6
х = 2

6)19 - 6х - 16 = 2х - 37
-6х - 2х = -19 +16 - 37
-8х = -40
8х = 40
х = 5

7)23 - 12х -32 = 1-17х
-12х +17х = -23 +32 +1
5х = 10
х = 2

Answer 2

1) 3 (x+5)=7-5x
3x+15=7-5x
3x+5x=15-7
8x=8
x=0
2) 4 (x-9)=3 (x-8)
4x-36=3x-24
4x-3x=-36+24
1x=-12
x=-12
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