а) 5x+(3x-3)=6x+11
5x + 3x – 3 = 6x + 11
5x + 3x – 6x = 11 + 3
2x = 14
x = 7
б) 3a-(10+5a)=54
3a – 10 – 5a = 54
3a – 5a = 54 + 10
-2a = 64
a = -32
в) (x-7)-(2x+9)=-13
x – 7 – 2x – 9 = – 13
x – 2x = – 13 + 9 + 7
-x = 3
x = -3
г) 0,6+(5y-1)=y+0,5
0.6 + 5y – 1 = 1y + 0.5
5y – y = 0,5 + 1 – 0,6
4y = 0.9
y = 0.225
а) 5x+(3x-3)=6x+11
5x + 3x – 3 = 6x + 11
5x + 3x – 6x = 11 + 3
2x = 14
x = 7
б) 3a-(10+5a)=54
3a – 10 – 5a = 54
3a – 5a = 54 + 10
-2a = 64
a = -32
в) (x-7)-(2x+9)=-13
x – 7 – 2x – 9 = – 13
x – 2x = – 13 + 9 + 7
-x = 3
x = -3
г) 0,6+(5y-1)=y+0,5
0.6 + 5y – 1 = 1y + 0.5
5y – y = 0,5 + 1 – 0,6
4y = 0.9
y = 0.225