SOLUTION: 7x+2y=-13 -3x-8y=-23 using the substitution method

Question 567611: 7x+2y=-13
-3x-8y=-23 using the substitution method
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
7x+2y=-13
-3x-8y=-23
using the substitution method
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Modify:
y = -(7x+13)/2
3x + 8y = 23
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Substitute for "y" and solve for "x":
3x - 8[(7x+13)/2] = 23
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6x-8(7x+13) = 46
6x-56x-104 = 46
-50x = 150
x = -3
----
Solve for "y":
y = -(7x+13)/2
y = -(-21+13)/2
y = -(-8)/2
y = 4
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Cheers,
Stan H.
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