8x-(7x+8)=9
8x – 7x – 8 = 9
8x – 7x = 9 + 8
x = 17
4x + 4 = 1x + 54 + 8
4x – x = 8 + 54 – 4
3x = 58
x = 58/3
х=19,3333333333
y+8=2y-(10+7y)+9
y + 8 = 2y – 10 – 7y + 9
y – 2y + 7y = 9 – 10 – 8
6y = -9
y = -1.5
8x-(7x+8)=9
8x – 7x – 8 = 9
8x – 7x = 9 + 8
x = 17
4x + 4 = 1x + 54 + 8
4x – x = 8 + 54 – 4
3x = 58
x = 58/3
х=19,3333333333
y+8=2y-(10+7y)+9
y + 8 = 2y – 10 – 7y + 9
y – 2y + 7y = 9 – 10 – 8
6y = -9
y = -1.5