Question

2. Calcule o valor de x.

a) 5x + 5 = 20

b) 2x + 3 = 13

c) 10x + 10 = 40

d) 2x - 3 = 17​

Answer 1

Resposta:

A) 5×= -5+20

5×= 15

X= 15

5

X= 3

B) 2X= -3+13

2x= 10

X= 10

2

X= 5

C) 10X= -10+40

10X= 30

X= 30

10

X= 3

D) 2X= 3+17

2X= 20

X= 20

2

X= 10