Question

Решите! пж
1)6х-12=4х-8
2)(2х-5)-(3х-7)=4
3)2/3x=18
4)5(x-1,2)-3х=2

При каком значении у равны значения выражений 8у-2 и 0,6у+4

Answer 1

1) 6x - 12 = 4x - 8
6x - 4x = -8 + 12
2x = 4
x = 4/2
x = 2
 

Answer 2

x = 18 : 2/3

Answer 3

x = 18/1 : 2/3

Answer 4

x = 18/1 * 3/2

Answer 5

x = 9/1 * 3/1

Answer 6

x = 27

Answer 7

1)6x-4x=-8+12
2x=4
x=2