Question

help esto esto es una práctica ​

Answer 1

Respuesta:

1.     23

2.    70

3.    6

4.    40

5.     11

6.     1

7.     45

Answer 2

x + 25 = 48

x = 48 - 25

x = 23

x - 58 = 12

x = 12 + 58

x = 70

2x + 4 = 16

2x = 16 - 4

2x = 12

$\frac{2x}{2} = \frac{12}{2} \\x = \frac{12}{2}$

x = 6

$\frac{x}{2} = 20\\2 \: x \: \frac{x}{2} = 2x20\\x = 2 \: x \: 20$

x = 40

2x - 20 = 2

2x = 20 + 2

2x = 22

$\frac{2x}{2} \: x \: \frac{22}{2}$

x = $\frac{22}{2}$

x = 11

x + 100 = 101

x = 101 - 100

x = 1

$\frac{x}{3} + 5 = 20 \\\frac{x}{3} \: + \: \frac{3x5}{3} = 20\\\frac{x+3x5}{3} = 20\\\\\frac{x+15}{3} = 20\\x(\frac{x+15}{3}) = 3 \: x \: 20$

x + 15 = 3 x 20

x + 15 = 60

x = 60 - 15

x = 45