Question 209296
Let  A=$ farm,,,,,and  ,,B=$ plantation
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A + B = $ 1,000,000,,,,,or  B=1,000,000 -A
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and,,.12A +.02B = $ 50,000
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subst,,,,,.12A +.02(1,000,000 -A) = 50,000
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.12A +20,000 -.02A = 50,000
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.10A = 30,000
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A= $ 300,000
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and,,,B= 1,000,000 - 300,000 = $ 700,000
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checking,,,.12(300,000) +.02(700,000) = 50,000,,,,ok
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and,  A+B=1,000,000,,,ok
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