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First lets set up the equation.

12 - 7b + 10b = 18.

Now lets combine all like terms on the left hand side.

12 - 7b + 10b = 18

12 + 3b = 18

Now lets combine all like terms using the like terms on the left side and on the right side.

12 + 3b = 18

-12 -12

3b = 6

Now lets divided (since the 3 is being multiplied to the b).

3b/3 = 6/3

So your final answer is:

b = 2

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โˆ™ 2011-01-21 19:38:17
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Q: What is 12 minus 7b plus 10b equals 18?
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