Which of the following is not an equation? options x=1 x=x+5
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x = 1 is an equation, it can also be written as x - 1 = 0 , it is an equation of first degree in x.
x = x + 5 is not an equation. it is not valid, as it reduces to 0 = 5.
x = x + 5 is not an equation. it is not valid, as it reduces to 0 = 5.
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x=1 is a equation and x=x+5 is not an equation.
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