Question

66 класс номер 1320помогите

Answer 1

1)
$frac{x+1}{2} = frac{2x-3}{5}+2$
5(х+1)=2(2х-3)+2*2*5
5х+5=4х-6+20
5х-4х=14-5
х=9

2)
$frac{11-3x}{4} = frac{x+13}{6}-x$
6(11-3x)=4(x+13)-6*4*x
66-18x=4x+52-24x
24x-18x-4x=52-66
2x= -14
x= -14^2
x= - 7

3)
$frac{5x+8}{9}+x= frac{7x+10}{6}$
6(5x+8)+6*9*x=9(7x+10)
30x+48+54x=63x+90
30x+54x-63x=90-48
21x=42
x=42:21
x=2

4)
$frac{2*(2-3x}{5}+1= frac{3-4x}{3}$
2*3(2-3х)+1*5*3=5(3-4х)
12-18х+15=15-20х
20х-18х=15-15-12
2х= -12
х= -12:2
х= - 6