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Question

Write 'T' for true and 'F' for false for each of the statements given below:
(i) −3xy2z is a monomial.
(ii) x=23 is solution of 2x + 5 = 8.
(iii) 2x + 3 = 5 is a linear equation.
(iv) The coefficient of x in 5xy is 5.
(v) 8 - x = 5 x = 3.

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Solution

(i) True
Since it has one term, it is a monomial.

(ii) False
2x + 5 = 8
or, 2x + 5 - 5 = 8 - 5 [Subtracting 5 from both the sides]
or, 2x = 3
or, x = 3/2 and not x = 2/3

(iii) True
This is because the maximum power of the variable x is 1.

(iv) False
The coefficient of x in 5xy would be 5y.

(v) True
8 − x = 5
or, 8 − 5 = x
or, 3 = x

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