Question

a) 4.(2x - 3) = 5. (x + 3)

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

c) 4.(x - 1) -2 . (3x + 4)

d) 3.(2x - 5) = 9 - 2x

e) 3. (x - 1) = 6

Alguém me ajuda ? pfv

Answer 1

Resposta:

a (8x−12)−{5x+15}=0

3x−27=0

(3)⋅x+(−27)=0

x=−(−27)3

x=−(3)⋅(−9)(3)=9

b(−2x+6)−{18}=0

−2x−12=0

(−2)⋅x+(−12)=0

x=−(−12)−2

x=−(2)⋅(−6)(2)⋅(−1)=−6

c=(4x−4)−(6x+8)=

=−2x−12

d3⋅(2x−5)−{−2x+9}=0

(6x−15)−{−2x+9}=0

8x−24=0

(8)⋅x+(−24)=0

x=−(−24)8

x=−(8)⋅(−3)(8)=3

e(3x−3)−{6}=0

3x−9=0

(3)⋅x+(−9)=0

x=−(−9)3

x=−(3)⋅(−3)(3)=3

Explicação passo a passo: