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Among $4 x y, - x y, 4 x$ and $7 x y$ , three terms are like terms.
What is the sum of the numerical coefficients of those three like terms?

Class 7Terms and CoefficientsAlgebra

A9
B11
C10
D20

Step-by-Step Solution

The like terms are

4 x y, - x y, 7 x y

(variable part

x y

). Sum of coefficients =

4 + (- 1) + 7 = 10

.

Answer: C) 10

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