Question 570069: 2a+6=-a-8
Show work please, and try to
explain it as best as possible
thx :) Found 3 solutions by jim_thompson5910, stanbon, mananth:Answer by jim_thompson5910(35256) (Show Source):
You can put this solution on YOUR website! 2a+6=-a-8
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Add a to both sides to get:
3a + 6 = -8
Subtract 6 from both sides to get:
3a = -14
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Divide both sides by 3 to get:
a = -14/3
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cheers,
Stan H.
You can put this solution on YOUR website! 2a+6=-a-8
You find that the variable a is on both sides of the = sign.
to find the value of a you have to have the a's on one side and the numbers on the other side.
Fisrt lets bring the a on the right side to the left of the = sign
add a to both sides of the equation
2a+a+6 =-a+a-8
2a+a=3a, +a & -a= 0 on the right side. You have -8 left
3a+6 =-8
we remove the number from the left side of the = sign
add -6 to both sides of the equation
3a+6-6 = -8-6
+6 & -6 =0
3a= -14
Now the 3 has to be eliminated to find the value of a
you divide both sides of the equation by 3
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