1) (3,2х-1,8)-(5,2х+3,4)=-5,8
3.2x – 1.8 – 5.2x – 3.4 = – 5.8
3,2x – 5,2x = – 5,8 + 3,4 + 1,8
-2x = -0.6
x = 0.3
2) 1-(0,5у-15,8)=12,8-0,7у
1 – 0.5y + 15.8 = 12.8 – 0.7y
– 0,5y + 0,7y = 12,8 – 15,8 – 1
0.2y = -4
y = -20
3) 3,8-1,5х+(4,5х-0,8)=2,4х+3
3.8 – 1.5x + 4.5x – 0.8 = 2.4x + 3
– 1,5x + 4,5x – 2,4x = 3 + 0,8 – 3,8
x = 0
4) 3,5+0,8=5,5у-(1,2у+0,8)-2,4
3.5 + 0.8 = 5.5y – 1.2y – 0.8 – 2.4
– 5,5y + 1,2y = – 2,4 – 0,8 – 0,8 – 3,5
-4.3y = -7.5
-43y = -75
y = -75/-43
у=1,74418604651
1) (3,2х-1,8)-(5,2х+3,4)=-5,8
3.2x – 1.8 – 5.2x – 3.4 = – 5.8
3,2x – 5,2x = – 5,8 + 3,4 + 1,8
-2x = -0.6
x = 0.3
2) 1-(0,5у-15,8)=12,8-0,7у
1 – 0.5y + 15.8 = 12.8 – 0.7y
– 0,5y + 0,7y = 12,8 – 15,8 – 1
0.2y = -4
y = -20
3) 3,8-1,5х+(4,5х-0,8)=2,4х+3
3.8 – 1.5x + 4.5x – 0.8 = 2.4x + 3
– 1,5x + 4,5x – 2,4x = 3 + 0,8 – 3,8
x = 0
4) 3,5+0,8=5,5у-(1,2у+0,8)-2,4
3.5 + 0.8 = 5.5y – 1.2y – 0.8 – 2.4
– 5,5y + 1,2y = – 2,4 – 0,8 – 0,8 – 3,5
-4.3y = -7.5
-43y = -75
y = -75/-43
у=1,74418604651