Question

e) 2.(7x + 2) + 12. (x + 1) = 2
f) - 2.(x - 3) = 18
g) 4.(x - 10) - 2.( 3x + 4) = 6

Me ajudeemm prfvr​

Answer 1

Resposta:

e) 2.(7x + 2) + 12. (x + 1) = 2

14x + 4 + 12x + 12 = 2

26x = 2 - 12 - 4

26x = -14

x = -14/26

x = -7/13

f) - 2.(x - 3) = 18

-2x + 6 = 18

-2x = 18 - 6

-2x = 12

x = 12/-2

x = -6

g) 4.(x - 10) - 2.( 3x + 4) = 6

4x - 40 - 6x - 8 = 6

-2x = 6 + 8 + 40

-2x = 54

x = 54/-2

x = -27