Question

Resolva: B)5x – 3x = 30 c)4x + 10 = 45 – 3x D)3x +3 = 0 E)3 (x –1) = 8x +4

Answer 1

Resposta:

b) x=15 c) x= 5 d) x = -1 e) x= -7/5

Explicação passo-a-passo:

b) 5x -3x = 30

2x = 30

x= 30/2

x=15

c) 4x+10=45-3x

4x + 3x = 45 - 10

7x = 35

x = 35/7

x= 5

d) 3x +3 = 0

3x = -3

x = -3/3

x = -1

e) 3 (x-1) = 8x +4

3x -3 = 8x + 4

3x - 8x = 4 + 3

-5x = 7

-x = 7/5 (-1)

x= -7/5

Answer 2

Respostas:

B)5x-3x=30 C)4x +10=45

2x=30 4x=45-10

x=30/2 4x=35

x=15 x=35/4

D)3x+3=0.

3x=0-3

3x=-3

x=-3/3