Question

1) 4х+5(3-2х)=5-11х
2) 19-2(3х+8)=2х-37
3) 8х+3(7-2х)=4х+3
4) 23-4(3х+8)=1-17х
Решите уравнения)
Пж!)..

Answer 1

1)4x+15-10x=5-11x
4x-10x+11x=5-15
5x=-10
x=-10:5
x=-2
2)19-2(3x+8)=2x-37
19-6x-16=2x-37
-6x-2x=-37+16-19
-8x=-40
x=-40:(-8)
x=5
3)8x+3(7-2x)=4x+3
8x+21-6x=4x+3
8x-6x-4x=3-21
-2x=-18
x=-18:(-2)
x=9
4)23-4(3x+8)=1-17x
23-12x-32=1-17x
-12x+17x=1+32-23
5x=10
x=10:5
x=2