Which of the following equation(s) is a linear equation in one variable?

2x + 3y = 10

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4a + 3b = 6

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2x = 3x + 4

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2x + 4z = 5

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Solution

The correct options are
B
4a + 3b = 6

C
2x = 3x + 4

4a = 6 , is a linear equation in one variable as it has only one variable, a.

2x = 3x + 4 is a linear equation in one variable as it has only one variable, x.

The other equations are linear but have two variables.

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