SOLUTION: a + 6a - 9 = 30

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Question 602078: a + 6a - 9 = 30
Found 2 solutions by jim_thompson5910, jjkool13:
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
a%2B6a-9=30 Start with the given equation.


7a-9=30 Combine like terms on the left side.


7a=30%2B9 Add 9 to both sides.


7a=39 Combine like terms on the right side.


a=%2839%29%2F%287%29 Divide both sides by 7 to isolate a.


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Answer:

So the solution is a=39%2F7

Answer by jjkool13(1) About Me  (Show Source):
You can put this solution on YOUR website!
Step 1: Simplify both sides of the equation.
a+6a−9=30
a+6a+−9=30
(a+6a)+(−9)=30(Combine Like Terms)
7a+−9=30
7a−9=30
Step 2: Add 9 to both sides.
7a−9+9=30+9
7a=39
Step 3: Divide both sides by 7.
7a/7 = 39/7
a=5 4/7