SOLUTION: 12x-8y=-110 30x-17y=-245

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Question 839676: 12x-8y=-110
30x-17y=-245
Answer by LinnW(1048) About Me  (Show Source):
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12x-8y=-110
30x-17y=-245
Multiply the top equation by -5
Multiply the bottom equation by 2
-60x+%2B40y=-550
60x+-34y+=+-490
add the two equations
+6y+=+60
+y+=+10
substitute 10 for y in 12x-8y=-110
12x-8%2810%29=-110
12x-80=-110
add 80 to each side
12x=-30
divide each side by 12
x=-30%2F12
x=-5%2F2