Question

01. Resolva as equações:

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

b) - 4.( x - 2 ) = 12

c) 3 + 5.( x - 3) = 13

d) - 7 - 3.( x - 2) = 8

e) 15 - 7 + 4.( x - 3 ) = 0

f) 3.( x+5) = 4.( x - 3)

g) 2.( x -3) + 7 - 3.( x + 6) = -1

h) 4.( x + 3) = 5.( x -4)

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Answer 1

Resposta:

a) X=5 b) X=9

Explicação passo-a-passo:

a) 3 ( X + 4 ) = -3

3 ( X + 4 ) + 3 =

3X + 12 + 3 =

3X + 15 =

X = 15÷3

X = 5

b) - 4 ( X - 2 ) = 12

- 4 ( X - 2 ) - 12 =

- 4X + 48 - 12 =

- 4X + 36 =

X = 46÷4

X = 9