Question

resolva as equações
(a)x-10=0
(b)x-5=-6
(c)2(x+1)=3×-6
(d)x/2-1=2/3
(e)3(2x-1)=4-x+2​

Answer 1

Resposta:

(a) x = + 10

(b) x = - 1

(c) x = 8

(d) x = 2/3

(e) x = 9/7

Explicação passo-a-passo:

(a) x-10=0

x = + 10

(b) x - 5 = - 6

x = - 6 + 5

x = - 1

(c) 2(x+1) = 3× - 6

2x + 2 = 3x - 6

2x - 3x = - 6 - 2

- 1x = - 8

x = - 8 • - 1

x = 8

(d) x/2-1 = 2/3

x = 2/3 • 2 - 1

x = 2/3 • 1

x = 2/3

(e) 3(2x-1) = 4 - x + 2

6x - 3 = 6 - x

6x + x = 6 + 3

7x = 9

x = 9/7