Question

решите уравнение 3(х-2)=х+2 2х(-3)=7(2+х) 5(1-х)=2(х-8) 11(5-2х)=3(х+7)

Answer 1

3x-6=x+2

3x-6-x-2=0

2x-8=0

2x=8

x=4

 

5-5x=2x-16

5-5x-2x+16=0

-7x+21=0

-7x=-21

x=3

 

55-22x=3x+7

55-22x-3x-7=0

-25x+48=0

-25x=-48

x=1,92