How is simplifying similar to division?

Simplifying is similar to division because simplification use division in order to get smaller (or 'simpler') terms in a given fraction. To do that, numerator and denominator are divided by the greatest common factor. For example, 4/10 can be simplified to 2/5, dividing 4 and 10 by 2.

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