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Earn +20 ptsQ: What is 7x and 21x?
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What is 3x x 7x?
It is equal to 21x You can not find x.
7x plus 7 equals 28 x equals?
7x+7=28x 28x-7x=7 21x=7 x=3
What is the product of the polynomials 7x plus 7 x plus 2?
(7x + 7)(x + 2) = 7x2 + 21x + 14
How do you factor 3x squared negative 21x plus 36?
3x2-21x+36 =3(x2-7x+12) =3(x-4)(x-3)
What type of linear system is 7x plus 2y equals 16 -21x-6y equals 24?
Do you mean 7x+2y = 16 and 21x-6y = 24? If so then it is simultaneous equation with the solution being: x = 12/7 and y = 2
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