Question

a) 3(4x-2)=5
b)11(x-3)=2(3x-4)
c)9(2x+3)-11=5(x-2)
d)6(2x-5)+2(3x-4)=4(3x+1)

Answer 1

Răspuns:

a)12x-6=5

12x=11

x=11/12

b)11x-33=6x-8

11x-6x=-8+33

5x=25

x=25/5

x=5

c)18x+27-11=5x-10

18x-5x=-10-16

13x=-26

x=- 26/13

x=-2

d)12x-30+6x-8=12x+4

18x-38=12x+4

6x=42

x=42/6

x=7

Answer 2

Răspuns:

Explicație pas cu pas:

a) 12x - 6 = 5

12x = 11

x = 11/12

b) 11x - 33 = 6x - 8

11x  - 6x = -8 + 33

5x = 25

x = 25/5 = 5

c) 18x + 27 - 11 = 5x - 10

18x + 16 = 5x - 10

13x = - 10 - 16

13x = - 26

x= -26/13 = -2

d) 12x - 30 + 6x - 8 = 12x + 4

18x - 38 = 12x + 4

6x = 42

x=42/6=7