Question

You begin solving the equation 3+4x =51 by subtracting 3 from both sides.which is the best choice answer for step 2?

Answer 1

Not sure what choices you are given but
3+4x=51
-3       -3
4x=48
divide by 4 to both sides
x=12

Answer 2

3 + 4x = 51

step 1: subtract 3 from both side 

3 + 4x - 3 = 51 - 3
4x = 48

step 2: divide by 4 on both side

4x = 48
4x ÷ 4 = 48 ÷ 4
x = 12