Question

0,4(-х-3)+2,5=0,5(4-х)

-2(х-3)+3(2-х)=27

Answer 1

-0.4x-1.2+2.5=2-0.5x
-0.4x+0.5x=2+1.2-2.5
0.1x=0.7|:0.1
x=7
Ответ:7
-2x+6+6-3x=27
-2x-3x=27-6-6
-5x=15|:(-5)
x= -3
Ответ: -3