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| Math Central | Quandaries & Queries |
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Question from Bob, a student: solve the system: x/2 - 2y= -8 |
Hi Bob.
If you multiply the second equation by 3, you get:
9x + 2y = -30
Now we add the two left-hand-sides and make that equal the sum of the two right-hand-sides:
(x/2 - 2y) + (9x + 2y) = (-8) + (-30)
Can you simplify this and solve for x? Use that value of x to find y.
Hope this helps,
Stephen La Rocque
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