To find the value of x, solve for x in both equations and check your answer.
2x + 2x + 2x = 12 Combine like-terms
6x = 12 Divide both sides by 6
x = 2
Check your answer.
2(2) + 2(2) + 2(2) = 12 Multiply
4 + 4 + 4 = 12 Add
12 = 12
Now, move on to the second equation.
2x - 1 = 3 Add 1 to both sides
2x = 4 Divide both sides by 2
x = 2
Check your answer.
2(2) - 1 = 3 Multiply
4 - 1 = 3 Subtract
3 = 3
So, for both equations, x = 2.
