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Mathematics

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Solve the system of equations algebraically.
GOF
4x + 5y = 15
- 4x + by = 7
a. (5/4, 2)
B. (2, 5/4)
C. (4/5, 2)
D. (2, 4/5)

Answer :

Mekaifergusongo Mekaifergusongo

A should be the right answer because 4*5/4=5 + 5*2=10 and 5+10=15.

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