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Maximillia Auer
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∙ 3y agoThis answer is:
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∙ 11y agoUse a system of equations to solve.
xy = 30
x+y = 11
Use substitution to solve for y.
x = 11-y
(11-y) * y = 30
11y-y^2=30
y^2-11y+30=0
We can factorize this quadratic easily, by testing different values:
(y-6)(y-5)=0
y=6, 5
Substituting these y values back into x=11-y,
y=6 when x=5: y=5 when x=6
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