Question 199061: {5x + 3y= 7
{x - 6y = 8
Answer by RAY100(1637)   (Show Source):
You can put this solution on YOUR website! (1) 5x +3y = 7
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(2) x-6y = 8
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let (2a) = (2) * (-5) = -5x +30y = -40
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add (1) + (2) = 0x =33y =-33,,,,or y=-1
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subst in (2) x-6(-1) = 8,,, x+6=8,,,,x=2
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check
(1) 10 -3 =7,,,,ok
(2) 2-(-6) =8,,,,ok
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