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Ksju [112]
3 years ago
7

B = 3/4 a a + b = 21 Solve.

Mathematics
2 answers:
Crazy boy [7]3 years ago
5 0
3/4 + a = 21

Change 21 into a fraction 84/4

84/4 - 3/4 = 81/4
Bad White [126]3 years ago
3 0

Answer: 21 3/4

Step-by-step explanation:

a+b => 3/4+21=21 3/4

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