Q: What value for a makes this equation true 5a equals a?

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6!

Any number that makes an equation true is a 'solution of an equation'. it is a solution

3 is the true!

It's the value that when substituted in for the variable, makes the equation true. Ex: x + 1 = 3 The value 2, when substituted for the variable x, makes the equation true.

the value that makes this ewuation true 5a=a is 2a

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We want to answer the equation 10x = 350 This can be done by dividing both sides by 10. That makes the equation x = 35. Thus the value of x that makes 10x=350 is 35.

Such an equation is called an IDENTITY.

Such a value is said to be a solution, or a root, of the equation.

In the equation x = 3, if x = 3, the equation is true, if x has any other value, it is not. The value of any other variable, such as y, is irrelevant. I would say that the answer is 0 because otherwise y is part of the equation which clearly it isnt.

11

In that case, x must be equal to zero. (0)