1) 2x + 15 = 3х – 11
2x – 3x = – 11 – 15
-x = -26
x = 26
2) 7-5x = x – 2
– 5x – x = – 2 – 7
-6x = -9
x = 1.5
3) 2x – 3 = 3(2 - x)
2x – 3 = 6 – 3x
2x + 3x = 6 + 3
5x = 9
x = 1.8
4) — 3(4 – x) = 2(х – 5)
– 12 + 3x = 2x – 10
3x – 2x = – 10 + 12
x = 2
1) 3,2х + 1,8x = 6x – 3,5
3,2x + 1,8x – 6x = – 3,5
x = 3.5
2) 7,5х – 2,5х=7x — 10
7,5x – 2,5x – 7x = – 10
-2x = -10
x = 5
3) 0,5 (0,4х – 8) = 5 (0,2х – 1)
0.2x – 4 = x – 5
0,2x – x = – 5 + 4
-0.8x = -1
x = 1.25
4) 2,4 (5х – 3) = - 0,8(10 – 5х)
12x – 7.2 = – 8 + 4x
12x – 4x = – 8 + 7,2
8x = -0.8
x = -0.1
1) 2x + 15 = 3х – 11
2x – 3x = – 11 – 15
-x = -26
x = 26
2) 7-5x = x – 2
– 5x – x = – 2 – 7
-6x = -9
x = 1.5
3) 2x – 3 = 3(2 - x)
2x – 3 = 6 – 3x
2x + 3x = 6 + 3
5x = 9
x = 1.8
4) — 3(4 – x) = 2(х – 5)
– 12 + 3x = 2x – 10
3x – 2x = – 10 + 12
x = 2
1) 3,2х + 1,8x = 6x – 3,5
3,2x + 1,8x – 6x = – 3,5
x = 3.5
2) 7,5х – 2,5х=7x — 10
7,5x – 2,5x – 7x = – 10
-2x = -10
x = 5
3) 0,5 (0,4х – 8) = 5 (0,2х – 1)
0.2x – 4 = x – 5
0,2x – x = – 5 + 4
-0.8x = -1
x = 1.25
4) 2,4 (5х – 3) = - 0,8(10 – 5х)
12x – 7.2 = – 8 + 4x
12x – 4x = – 8 + 7,2
8x = -0.8
x = -0.1