Which of the following are like terms ?
7x , 12y
15x , -21x
3xy , 3x
none of these
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Answer:
7x is a like term becoz it had a coffecient
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Step-by-step explanation:
Like terms" are terms whose variables (and their exponents such as the 2 in x2) are the same.
In other words, terms that are "like" each other.
Note: the coefficients (the numbers you multiply by, such as "5" in 5x) can be different.
Example:
7x x −2x
Are all like terms because the variables are all x
Example:
(1/3)xy2 −2xy2 6xy2 xy2/2
Are all like terms because the variables are all xy2
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