Solve for A
A=3885
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A≔3885
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A=\frac{42}{2}\left(74+111\right)
Multiply \frac{1}{2} and 42 to get \frac{42}{2}.
A=21\left(74+111\right)
Divide 42 by 2 to get 21.
A=21\times 185
Add 74 and 111 to get 185.
A=3885
Multiply 21 and 185 to get 3885.
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