а) 6х-12=5х+4
6x – 5x = 4 + 12
x = 16
б) -9а+8=-10а-2
– 9a + 10a = – 2 – 8
a = -10
в) 7м+1=8м+9
7m – 8m = 9 – 1
-m = 8
m = -8
г) -12n-3=11n-3
– 12n – 11n = – 3 + 3
n = 0
а) 6х-12=5х+4 6x – 5x = 4 + 12 x = 16 б) -9а+8=-10а-2 – 9a + 10a = – 2 – 8 a = -10 в) 7м+1=8м+9 7m – 8m = 9 – 1 -m = 8 m = -8 г) -12n-3=11n-3 – 12n – 11n = – 3 + 3 n = 0
а) 6х-12=5х+4
6x – 5x = 4 + 12
x = 16
б) -9а+8=-10а-2
– 9a + 10a = – 2 – 8
a = -10
в) 7м+1=8м+9
7m – 8m = 9 – 1
-m = 8
m = -8
г) -12n-3=11n-3
– 12n – 11n = – 3 + 3
n = 0
а) 6х-12=5х+4 6x – 5x = 4 + 12 x = 16 б) -9а+8=-10а-2 – 9a + 10a = – 2 – 8 a = -10 в) 7м+1=8м+9 7m – 8m = 9 – 1 -m = 8 m = -8 г) -12n-3=11n-3 – 12n – 11n = – 3 + 3 n = 0