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Fed [463]
3 years ago
7

A stadium has two sections, A and B.

Mathematics
1 answer:
Alekssandra [29.7K]3 years ago
5 0
ANSWER: a=12 b=15
Explanation: (look at work below)

4a + 1b = 63 (eq1)
5a + 3b = 105 (eq2)
-12a + -3b = -189 (subt. eq1 from eq2)
————————-
-7a = -84
a = 12
4(12) + 1b = 63 (plug in the a value)
48 + 1b = 63
b = 15
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