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Byju's Answer
Standard VII
Mathematics
Types of Algebraic Expressions
Choose the ex...
Question
Choose the expression with exactly one variable.
A
2a + b - 7
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B
a + 2
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C
1
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D
a + b + c
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Solution
The correct option is
B
a + 2
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Similar questions
Q.
If the system of equations has infinitely many solutions, then
2x + 3y = 7
(a + b)x + (2a − b)y = 21
(a) a = 1, b = 5
(b) a = 5, b = 1
(c) a = −1, b = 5
(d) a = 5, b = −1