Question 135612: I need a lot of help with theses problems. Your help will be greatly appreciated, thank you!
A. 3x - 6y = 12
B. 2x - y = -4
These two are the problems that I need help with, thank you a lot.
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! These systems can be solved by graphing, substitution, and by elimination.
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A. 3x - 6y = 12
B. 2x - y = -4
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Elimination:
Multiply equation B thru by 6 to get:
C. 12x -6y = -24
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Subtract A from C to get:
9x = -36
x = -4
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Substitute to solve for "y":
3(-4)-6y = 12
-12-6y = 12
6y = -24
y = -4
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Solution: (-4,-4)
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Cheers,
Stan H.
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