Use the replacement set {4, 6, 12} to find which values will make the equation 2x + 4 = 16 − x true.

x = 4

Step-by-step explanation:

Replace x over one of the replacements

2 (4) + 4 = 16 - 4

Then solve

2 (4) + 4 = 16 - 4 =

8 + 4 = 16 - 4             8 + 4 = 12                   16 - 4 = 12

                               x = 4

Mark me as brainliest!!

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: