How do you solve 2x plus 4 equals 3x plus 4?

Answer 1

2x + 4 = 3x +4

1) First bring all of the unknowns ("x") to one side and the cardinal values to the other side. When terms switch sides, they also switch signs (e.g., moving a +4 from one side to the other makes the value -4 once moved).

So 2x moves to the right and +4 moves left, giving you the equation:

+4 -4= 3x - 2x

2) Simplifying both sides leads to the following:

+4 - 4=3x - 2x

0 = 1x

0=x

(But usually, the unknown is represented on the left hand side of the equation)

x=0

3) Since we have discovered a result, one can check the answer by replacing the unknown with the solution (in this case, 0):

2x + 4 = 3x +4

(2 * 0) + 4 = (3 * 0) + 4

4 = 4

The check, uh, checks. So we are good to go!