Question 4285
First multiply each side of the equation by 10 to clear the decimals from the problem.


5x + 34 = 2x + 124


Add -2x to each side to get all variables on the left side:
5x - 2x + 34 = 2x - 2x + 124
3x + 34 = 124


Subtract 34 from each side:
3x + 34 - 34 = 124 - 34
3x = 90


Divide each side by 3
x = 30