Question

Exercitiile urmatoare

Answer 1

c) 3x-2x+6=2x+4

x+6=2x+4

x-2x= 4-6

-x= -2

x=2

d) 1,5x+3=8+7

1,5x+3=15

1,5x=12

x=12:15/10

x= 12×2/3

x= 8

Answer 2

c) 3x-2•(x-3)=2x+4

3x-2x-6=2x+4

x-6=2x+4

x-2x=4+6

-x=10

x=-10

d)3•(0,5x+1)-7=8

1,5x+3-7=8

1,5x-4=8

1,5x=8+4

1,5x=12

x=8