1)3x−2x-2x−2=x+2
3x – 6 = 1x + 2
3x – x = 2 + 6
2x = 8
x = 4
2)5-2x−1x-1x−1=4-x
5 – 2x + 2 = 4 – x
– 2x + x = 4 – 2 – 5
-x = -3
x = 3
3)7x+17x+17x+1-9x+39x+39x+3=5
7x + 1 – 9x – 3 = 5
7x – 9x = 5 + 3 – 1
-2x = 7
x = -3.5
4)3,4+2y=7y−2,3y-2,3y−2,3
3.4 + 2y = 7y – 16.1
2y – 7y = – 16,1 – 3,4
-5y = -19.5
y = 3.9
5)3x+6=222x−72x-72x−7-x
3x + 6 = 44x – 154 – x
3x – 44x + x = – 154 – 6
-40x = -160
6)6,23−2x3-2x3−2x=20-12,4x+1,412,4x+1,412,4x+1,4
18.6 – 12.4x = 20 – 12.4x – 1.4
– 12,4x + 12,4x = – 1,4 + 20 – 18,6
Уравнение имеет множество решений
1)3x−2x-2x−2=x+2
3x – 6 = 1x + 2
3x – x = 2 + 6
2x = 8
x = 4
2)5-2x−1x-1x−1=4-x
5 – 2x + 2 = 4 – x
– 2x + x = 4 – 2 – 5
-x = -3
x = 3
3)7x+17x+17x+1-9x+39x+39x+3=5
7x + 1 – 9x – 3 = 5
7x – 9x = 5 + 3 – 1
-2x = 7
x = -3.5
4)3,4+2y=7y−2,3y-2,3y−2,3
3.4 + 2y = 7y – 16.1
2y – 7y = – 16,1 – 3,4
-5y = -19.5
y = 3.9
5)3x+6=222x−72x-72x−7-x
3x + 6 = 44x – 154 – x
3x – 44x + x = – 154 – 6
-40x = -160
x = 4
6)6,23−2x3-2x3−2x=20-12,4x+1,412,4x+1,412,4x+1,4
18.6 – 12.4x = 20 – 12.4x – 1.4
– 12,4x + 12,4x = – 1,4 + 20 – 18,6
Уравнение имеет множество решений