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OpenStudy (anonymous):
Polynomials: Find the sum or difference: (5x+9y)-(2x+4y)
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OpenStudy (anonymous):
You must distribute the minus. This equation can be rewritten as (5x+9y) - 2x - 4y (Distribute the negative to 4y). Then regroup: 5x -2x +9y - 4y
OpenStudy (anonymous):
5x+9y - 2x -4y 5x-2x +9y-4y 3x +5y
OpenStudy (anonymous):
3x + 5y
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