Question

1) Determine o valor do X

a) x + 23 = 45

b) x - 25 = 61 *

c) 7x = 56

d) 2x -3 = 7

e) 5x + 2 = 4

f ) 4x = 64

Answer 1

Resposta:

a) x = 22

b) x = 86

c) x = 8

d) x = 5

e) x = $\frac{2}{5}$

f) x = 16

Explicação passo a passo:

a) x + 23 = 45

x = 45 - 23

x = 22

b) x - 25 = 61

x = 61 + 25

x = 86

c) 7x = 56

x = $\frac{56}{7}$

x = 8

d) 2x - 3 = 7

2x = 7 + 3

2x = 10

x = $\frac{10}{2}$

x = 5

e) 5x + 2 = 4

5x = 4 - 2

5x = 2

x = $\frac{2}{5}$

f) 4x = 64

x = $\frac{64}{4}$

x = 16

Answer 2

Resposta:

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