Question

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Answer 1

5x+2(x+3) is an expression

5x=2(x+3) is an equation

8m-3m+5=16 is an equation

8m-3m+5-16 is an expression

An equation always and I mean ALWAYS uses a = sign.

An expression is a combination of numbers and variables and symbols.

Hope that's useful

Answer 2

1) Expression

2) Equation

3) Equation

4) Expression

Explanation:

An equation always contains an equal sign, so in this case, if it doesn't contain an equal sign, it's an expression.

For 2 and 3, you can see that there is an equal sign, but for 1 and 4, there is not.

Therefore, 1 and 4 are expressions and 2 and 3 are equations.

I hope this helped.