)-3,3х-1,2-0,7х-1,6=0
-4х-2,8=0
-4х=2,8
х=2,8/(-4)
х=-0,7
2)-4,1х-2,5-2,3-3,9=1,6х
-4,1х-8,7=1,6х
1,6х+4,1х=-8,7
5,7х=-8,7
х=-8,7/5,7
х=-87/57 (дробь)
3)3,6х+2,5-1,8х-2,3=1,6х
1,8х+0,2=1,6х
0,2х=-0,2
х=-1
4)1,3х-2,5х-3,8х+2,3=3,7
-2,5х-0,2=3,7
-2,5х=3,9
х=3,9/(-2,5)
х=-1,56
5) -7,7х-2,2-5,5х+9,9х=1,1
-3,3х-2,2=1,1
-3,3х=3,3
х=-1
1)-(3.3x+1.2)-(0.7x+1.6)=0
-3.3x-1.2-0.7x-1.6=0
-4x=2.8
x=-0.7
2) -(4.1x+2.5)-(2.3+3.9)=1.6x
-4.1x-2.5-6.2-1.6x=0
-5.7x=8.7
x=87/57
3)(3.6x+2.5)-(1.8x+2.3)=1.6x
3.6x+2.5-1.8x-2.3-1.6x=0
0.2x=-0.2
x=-1
4) (1.3x-2.5x)-(3.8x-2.3)=3.7
-1.2x-3.8x=-2.3+3.7
-5x=1.4
x=-0.28
5)-(7.7x+2.2)-(5.5x-9.9x)=1.1
-7.7x+4.4x=2.2+1.1
-3.3x=3.3
x=-1