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-2a - 9 equals 6a plus 15 please answer as fast as you can

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asked Jul 25, 2015 196k views

4 votes

-2a - 9 equals 6a plus 15 please answer as fast as you can

Mathematics
middle-school

Sifriday asked

by Sifriday

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2 Answers

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Ok ready here we go -2a-9=6a+15 +2a. +2a -9=8a+15 -15. -15 -24=8a -24/8=a Good luck

COLD ICE answered Jul 26, 2015

by COLD ICE

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$-2a-9=6a+15\ \ \ \ \ |add\ 9\ to\ both\ sides\\\\-2a=6a+24\ \ \ \ \ \ |subtract\ 6a\ from\ both\ sides\\\\-8a=24\ \ \ \ \ \ |divide\ both\ sides\ by\ (-8)\\\\\boxed{a=-3}$

Hyperman answered Jul 28, 2015

by Hyperman

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-2a - 9 equals 6a plus 15 please answer as fast as you can

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