Решить.5х-(7+8+4х)=56,12-2х+3х-7=29,4х+(15-3х)-12=26,23-х+1=11,27-(х-3)+12=10,2х-4-13-x=47,(21+x)-34=11,19+(13-7x+8x)=59

1.5x-7-8-4x=56
x-15=56
x=71
2.12-2x+3x-7=29
x+5=29
x=24
3,4x+(15-3x)-12=26
4x+15-3x-12=26
x+3=26
x=23
4.23-x+1=11
24-x=11
x=13
5.27-(x-3)+12=10
27-x+3+12=10
42-x=10
x=32
6.2x-4-13-x=47
x-17=47
x=64
7.(21+x)-34=11
21+x-34=11
x-13=11
x=24
8.19+(13-7x+8x)=59
19+13-7x+8x=59
x+32=59
x=27