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Advanced Math/subsitution or elimination
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Question
Please help me!
1. -x+6y=11
x-2y=1
2. x+3y=6
2x+y=-8
Thanks!
1.)
-x + 6y = 11
x - 2y = 1
the x's cancel out
4y = 12
y = 3
x - 2(3) = 1
x = 7
ANS : (7,3)
-----------------------------------
2.)
x + 3y = 6
2x + y = -8
multiply top by -2
-2x - 6y = -12
2x + y = -8
-5y = -20
y = 4
x + 3(4) = 6
x = -6
ANS : (-6,4)
also check out www.quickmath.com
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Advanced Math
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Sherman D.
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