А)6х-20=8х-12
6x – 8x = – 12 + 20
-2x = 8
x = -4
б)12-2(5х+3)=4(х-2)
12 – 10x – 6 = 4x – 8
– 10x – 4x = – 8 + 6 – 12
-14x = -14
x = 1
А)6х-20=8х-12 6x – 8x = – 12 + 20 -2x = 8 x = -4 б)12-2(5х+3)=4(х-2) 12 – 10x – 6 = 4x – 8 – 10x – 4x = – 8 + 6 – 12 -14x = -14 x = 1
А)6х-20=8х-12
6x – 8x = – 12 + 20
-2x = 8
x = -4
б)12-2(5х+3)=4(х-2)
12 – 10x – 6 = 4x – 8
– 10x – 4x = – 8 + 6 – 12
-14x = -14
x = 1
А)6х-20=8х-12 6x – 8x = – 12 + 20 -2x = 8 x = -4 б)12-2(5х+3)=4(х-2) 12 – 10x – 6 = 4x – 8 – 10x – 4x = – 8 + 6 – 12 -14x = -14 x = 1