Question

Which is an equation?

a. 17+x
b. 20x=200
c. 45/x
d. 90-x

Answer 1

The equation is b. 20x=200

Explanation:

The answer is b. 20x=200 because an equation has an equal sign. All of the other answer choices are expressions.

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Answer 2

b. 20x=200 equation

Explanation:

An equation has an equal sign.

An expression does not have an equal sign.

a. 17+x expression

b. 20x=200 equation

c. 45/x expression

d. 90-x expression