Question

QUESTÃO 01. Resolva as equações do 1° grau a seguir:
a) 4x = 12
b) 8x = 40
c) 5x – 4= 6
d) 5x – 6=-3x + 10
e) 2(x - 5) = 20
f) 3(2x + 5) = 45​

Answer 1

a) 4(X-3)

b) X=5

c) X=2

d) X=2

e) X= 15

f) X= 5

Answer 2

Resposta:

a) 3

b) 5

c) 2

d) 2

e) 15

f) 5

Explicação passo-a-passo:

a) 4x = 12

x = 12 / 4

x = 3

b) 8x = 40

x = 40 / 8

x = 5

c) 5x - 4 = 6

5x = 10

x = 10 / 2

x = 2

d) 5x - 6 = 3x + 10

2x = 16

x = 16 / 2

x = 8

e) 2( x - 5 ) = 20

2x = 30

x = 30 /2

x = 15

f) 3( 2x + 5 ) = 45

6x = 30

x = 30 / 6

x = 5