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Shalnov [3]
3 years ago
14

Please Help Fast!!! 20 points Solve the system of equations: y−x=20 2x−15y=−1

Mathematics
2 answers:
andreev551 [17]3 years ago
3 0
Isolate y: 2x-15(20+x)=-1
isolate x: 20-23 = -3
substitute: x = -23
answer: (-23, -3)
slavikrds [6]3 years ago
3 0

Answer:

x= 15y - 1

---------------------

         2

Step-by-step example

you should use cymath it help with equations

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