
Patrick B. answered 12/12/18
Tutor
4.7
(31)
Math and computer tutor/teacher
3A + 4C = 73
2A + 3C = 52
Elimination: multiplies first equation by -2 and second equation by 3
-6A + -8C = -146
6A + 9C = 156
C = 10
2A + 3(10) = 52
2A + 30 = 52
2A = 22
A=11
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