Add the following monomials
1- 3x,5x
2-9y,-6y
3-xy,xy
4-11x2,-11x2
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Step-by-step explanation:
3x + 5x = 8x
9y + (-6y) = 9y- 6y = 3y
xy +xy =2xy
11x^2+(-11x^2)= 0
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