SOLUTION: what is x in 3x + 7=2x + 19?
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Question 167490
:
what is x in 3x + 7=2x + 19?
Found 2 solutions by
nerdybill, Mathtut
:
Answer by
nerdybill(7384)
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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)
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--->subtract 2x and 7 from each side