а) 6x+(3x-2)=14
6x + 3x – 2 = 14
6x + 3x = 14 + 2
9x = 16
x = 16/9
х=1,77777777778
б)8y-(7y-142)=51
8y – 7y + 142 = 51
8y – 7y = 51 – 142
y = -91
в)5=-1-(3-9x)
5 = – 1 – 3 + 9x
– 9x = – 3 – 1 – 5
-9x = -9
x = 1
г)9-(8x-11)=12
9 – 8x + 11 = 12
– 8x = 12 – 11 – 9
-8x = -8
а) 6x+(3x-2)=14
6x + 3x – 2 = 14
6x + 3x = 14 + 2
9x = 16
x = 16/9
х=1,77777777778
б)8y-(7y-142)=51
8y – 7y + 142 = 51
8y – 7y = 51 – 142
y = -91
в)5=-1-(3-9x)
5 = – 1 – 3 + 9x
– 9x = – 3 – 1 – 5
-9x = -9
x = 1
г)9-(8x-11)=12
9 – 8x + 11 = 12
– 8x = 12 – 11 – 9
-8x = -8
x = 1