Question

the sum of three times a number and 2 less than 4 times the same number is 15. which of the following equations could be used to find the value of the number m, n? explain how you arrived at your choice.

Answer 1

To solve for a number x,

3x+4x-2=15
7x-2=15
7x=17
x=2 3/7
or x=~2.43

was one of your answer choices either of the first two equations?