Question

Calcule o valor do X na figura ​

Answer 1

Resposta:

b) x = 30

c) x = 20

d) x = 10

e) x = 12

Explicação passo-a-passo:

b) 2x - 35 + 65 = 90

2x = 90 + 35 - 65

x = 60/2

x = 30

c) 2x - 10 + x + 40 = 90

2x + x = 90 + 10 - 40

3x = 60

x = 60/3

x = 20

d) x + 5 + x + 10 + x + 15 + x + 20 = 90

x + x + x + x = 90 -5 -10 -15 - 20

4x = 40

x = 40/4

x = 10

e) x + 40 + 3x + x - 10 = 90

x + 3x + x = 90 -40 + 10

5x = 60

x = 60/5

x = 12