Question 265033
I am doing solving systems by elimination 
I need help knowing the process of how to do it.
here is an example: 
7b-5c=11
-4c-2b=-14
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Procedure:
1st: Decide which variable you want to eliminate:
2nd: Decide if you are going to add or subtract to eliminate that variable:
OK
Let's eliminate "b" by adding.
Multiply the 1st equation by 4
Multiply the 2nd quation by 7
You get:
28b - 20c = 4*11
-28b- 14c = 7*-14
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Add and the "b" terms will disappear:
-34c = 4*11 -7*14
-34c = -54
c = 27/17
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Substitute into one of the original equation to solve for "b":
7b-5c=11
7b - 5(27/17) = 11
7b = 187/17 + 135/17
7b = 322/17
b = 46/17
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Cheers,
Stan H.