1)15x-3=10x+12
15x – 10x = 12 + 3
5x = 15
x = 3
2)-2x-25=-5x-7
– 2x + 5x = – 7 + 25
3x = 18
x = 6
3)4(5-2y)=2(1-y)
20 – 8y = 2 – 2y
– 8y + 2y = 2 – 20
-6y = -18
y = 3
4)3y+16=8y-9
3y – 8y = – 9 – 16
-5y = -25
y = 5
5)4x+(11,8-x)=3,8-5x
4x + 11.8 – x = 3.8 – 5x
4x – x + 5x = 3,8 – 11,8
8x = -8
x = -1
1)15x-3=10x+12
15x – 10x = 12 + 3
5x = 15
x = 3
2)-2x-25=-5x-7
– 2x + 5x = – 7 + 25
3x = 18
x = 6
3)4(5-2y)=2(1-y)
20 – 8y = 2 – 2y
– 8y + 2y = 2 – 20
-6y = -18
y = 3
4)3y+16=8y-9
3y – 8y = – 9 – 16
-5y = -25
y = 5
5)4x+(11,8-x)=3,8-5x
4x + 11.8 – x = 3.8 – 5x
4x – x + 5x = 3,8 – 11,8
8x = -8
x = -1