а)(5х-3)+(7х-4)=8-(15-11х)
5x-3+7x-4=8-15+11x
12x-7=-7+11x
x=0
б) (4х+3)-(10х+11)=7+(13-4х)
4x+3-10x+11=7+13-4x
-6x+14=20-4x
-2x=6
x=-3
в)(7-5x)-(8-4x)+(5x+6)=8
7-5x-8+4x+5x+6=8
4x=3
x=0.75
г)(3-2x)+(4-3x)+(5-5x)=12+7x
3-2x+4-3x+5-5x=12+7x
-17x=0
а)(5х-3)+(7х-4)=8-(15-11х)
5x-3+7x-4=8-15+11x
12x-7=-7+11x
x=0
б) (4х+3)-(10х+11)=7+(13-4х)
4x+3-10x+11=7+13-4x
-6x+14=20-4x
-2x=6
x=-3
в)(7-5x)-(8-4x)+(5x+6)=8
7-5x-8+4x+5x+6=8
4x=3
x=0.75
г)(3-2x)+(4-3x)+(5-5x)=12+7x
3-2x+4-3x+5-5x=12+7x
-17x=0
x=0