Question

Given the equation 3x + 25 = 7x − 5, which order of operations completely solves for x?
A. Add 3x, then subtract 25, lastly divide by 10
B. Subtract 3x, then add 5, lastly divide by 4
C. Add 7x, then add 25, lastly divide by 10
D. Subtract 7x, then add 5, lastly divide by 10

Answer 1

The answer is B.

3x+25=7x-5

25=4x-5

30=4x

15/2=x