Question

A) x + 10 = 15
b) x - 6 = 20
c) $\frac{x}{2} = 7$
d) 5x = 50

Answer 1

Respuesta:

X+10=15

X=15-10

X=5

X-6=20

X=20+6

X=26

X/2=7

X=7x2

X=14

5x=50

X=50/5

X=10

Answer 2

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                                   Hola!

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Problemas planteados:

a)    x + 10 = 15

b)   x - 6 = 20

c)    $\frac{x}{2} =7$

d)    5x = 50

Solución:

a)

$x + 10 = 15\\x = 15 - 10\\x = 5$

b)

$x - 6 = 20\\x = 20 + 6\\x = 26$

c)

$\frac{x}{2} = 7\\x = 7 . 2\\x = 14$

d)

$5x = 50\\x = \frac{50}{5} \\x = 10$

Comprobación:

a)  

$x . 5 + 10 = 15\\5x + 10 = 15\\15 = 15$

b)

$x . 26 - 6 = 20\\26x - 6 = 20\\20 = 20$

c)

$\frac{x . 14}{2} = 7\\\frac{14x}{2} = 7\\7 = 7$

d)

$5x . 10 = 50\\50 = 50$

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                    ╚»★«╝Saludos╚»★«╝