Question

If A+A=30
If B+B=20
If C+C=10
A+BxC=?

Answer 1

Answer:

$a + a = 30 \\ 2a = 30 \\ a = \frac{30}{2} \\ a = 15 \\ b + b = 20 \\ 2b = 20 \\ b = \frac{20}{2} \\ b = 10 \\ c + c = 10 \\ 2c = 10 \\ c = \frac{10}{2} \\ c = 5 \\ now \\ a + (b \times c) \\ 15 + (10 \times 5) \\ 15 + 50 \\ 65$

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