Question

resolva as equações:

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

b) 2.(7x+2)+12.(x+1)=2​

Answer 1

→ Cálculo :

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

-2x + 6 = 18

-2x = 18 - 6

-2x = 12

x = -12 ÷ 2

x = -6

B) 2.( 7x + 2) + 12.( x + 1) = 2​

14x + 4 + 12x + 12 = 2

26x + 16 = 2

26x = 2 - 16

26x = -14

x = -14/26

Reduza a divisão com o número 2.

x = -14÷2 / 26÷2

x = -7/13