Question

Exercício: Resolva corretamente as equações abaixo: a) 6x – 9 = 2x + 3 b) – 8y + 5 = 6y – 2 c) 4x + 3 – 2x = – 8 – x – 7 d) 6b – 11 + b = 1 – b + 3 e) x – 3 – x = 1 + 2x – 1 f) 5x + 7 + 4x = 1 + 3x – 10 g) – 8x – 13 – 3x = – 7 – 2x – 3 h) – 2 – 5x + 4 = 3x + 9 – x ajudem por favorr!

Answer 1

Explicação passo-a-passo:

a) 6x-9 = 2x+3

6x-2x = 3+9

4x = 12

X = 3

b) -8y+5 = 6y-2

-8y-6y = -2-5

-14y = -7 (multiplica por -1)

14y = 7

c)4x+3-2x = -8-x-7

4x+x-2x = -8-7-3

3x = -18

X = -6

d)6b-11+b = 1-b+3

6b+b+b = 1+11+3

8b = 15

b = 1,875

e)x-3-x = 1+2x-1

x-x-2x = 1+3-1

-4x = 3

4x = -3

X = -0,75 ou -3\4

f)5x+7+4x = 1+3x-10

5x+4x-3x = 1-7-10

6x = -16

X = 2,66

g)-8x-13-3x = -7-2x-3

-8x+2x-3x = -7+13-3

-9x = 3

9x = -3

X = -0,33

h)-2-5x+4 = 3x+9-x

-5x-3x+x = 9+2-4

-7x = 7

7x = -7

X = -1