SOLUTION: what is x in 3x + 7=2x + 19?

Question 167490: what is x in 3x + 7=2x + 19?

Found 2 solutions by nerdybill, Mathtut:
Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
The idea is to isolate the unknown (x) to one side of the equation -- doesn't matter which side.
.
Starting with:
3x + 7=2x + 19
Subtract 7 from both sides:
3x = 2x + 12
Subtract 2x from both sides:
x = 12

Answer by Mathtut(3670) (Show Source): You can put this solution on YOUR website!
--->subtract 2x and 7 from each side

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