2/3 • x = 10
First isolate the variable x by dividing both sides by 2/3
2/3 • x = 10
2/3 2/3
x = 15
Then you check your answer by plugging in 15 for x in the original equation
2/3 • 15 = 10
10 = 10
Therefore, the value from the choices given that will make the equation 2/3 • x = 10 true is 15
