Find the solution to each equation A. X = x
B.2x + 6 = 2(x + 3)
C. 3(x + 1) = 3x + 1
D. 5 - 9 + 3x = -10 + 6 + 3x

7

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: