Question

Решите уравнения
20+5x=44+x
27-4y=3-8y
5x+11=7x-3
8y+11=4y-1

Answer 1

5x-x=44-20, 4x=24, x=24/4=6;  8y-4y= 3-27, 4y= -24, y=(-24)/4= -6; 5x-7x= -3-11, -2x= -14, x=(-14)/(-2)=7; 8y-4y= -1-11, 4y= -12, y=(-12)/4= -3.

Answer 2

1)5х-х=44-20
4х=24
х=24:4
х=6
2)-4у+8у=3-27
4у=-24
У=-24:4
у=-6
3)5х-7х=-3-11
-2х=-14
х=7
4)8у-4у=-1-11
4у=-12
у=-3