Find the value of x. show step by will award brainliest : )

x=21 degrees

Step-by-step explanation:

<J congruent <E        (Base Angles Theorem)

90+(7x+3)+(7x+3)=180      (Sum of Angles in a Triangle)

96+14x=180                        (Algebra and Substitution)

180-96=`4x

84=4x

x=84:4

x=21

Hope this helps! <3

step-by-step explanation:

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so: