Evaluate
21
Factor
3\times 7
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\frac{6.3}{0.3}
Multiply 7 and 0.9 to get 6.3.
\frac{63}{3}
Expand \frac{6.3}{0.3} by multiplying both numerator and the denominator by 10.
21
Divide 63 by 3 to get 21.
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Matrix
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Simultaneous equation
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Limits
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