Question 698393:
if five times a number is subtracted from twelve times a number, the result is seven less than twice the number. Find the number. Found 2 solutions by checkley79, Stitch:Answer by checkley79(3341) (Show Source):
You can put this solution on YOUR website! 12n-5n=2n-7
7n=2n-7
7n-2n=-7
5n=-7
n=-7/5 ans.
proof:
12*-7/5-5*-7/5=2*-7/5-7
-84/5+35/5=-14/5-7
-49/5=-14/5-7
-49/5+14/5=-7
-35/5=-7
-7=-7
You can put this solution on YOUR website! Given:
Combine like terms
Subtract 2X from both sides
Subtract 7 from both sides
Divide both sides by 5
X = -7/5 or - 1.4
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