Question

1)16z+1,7=2z-1
2)6x-12=5x+4

Answer 1

легко,смотри:
1)16z + 1,7 = 2z - 1
16z - 2z = -1 - 1.7
14z = -2.7
z = -2.7 ÷ 14
z = -27/10 × 1/14(это дроби)
z = - 27/140

2)6x - 12 = 5x + 4
6x-5x=4+12
x=4+12
x=16
 

Answer 2

1)16z-2z=1.7-1 ;14z=0.7;z=0.7:14;z=0,05
2)6x-5x=12+4;x=16