Question

Si: A = 13 +7 B = 13 + 10 hallar "x", si es menor que 13. A+B= 13 + x B = 13 X10 ​

Answer 1

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A = 13 + 7 = 20

B = 13 + 10 = 23

20 + 23 = 13 + x

43 = 13 + x

-x = 13 - 43

-x = -30

$\boxed{x = 30}$

23 = 13x10

23 = 130x

130x = 23

$\boxed{x = \frac{23}{130} }$

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