Determina una fracción si se sabe que, si se aumenta su numerador en 7 unidades y se
aumenta su denominador en 2, equivale a 1; pero si se disminuye el numerador en 1 y el
denominador en 7, equivale a 2. Determina dicha fracción.

x = 10.1

step-by-step explanation:

all of the angles of a tirangle add up to 180º

180 - 65 = 115 (since we already know the value of one angle)

(2x + 7) + (8x + 7) = 115

(combins like terms) 10x + 14 = 115

(isolate the variable subtract 14 from both sides): 10x = 101

(find the variable divide both sides by 10): x = 101/10

x = 10.1

the answer is 45 i just did it on oddesy ware

30

step-by-step explanation:

times by times

a .4y4

hope this !