If we don't have any to choose from, I'm going to say 7 x 8.
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No an algebraic expression does not contain an equal sign.
It is an algebraic expression of three terms.
The expression h + 56 can't be simplified. If you assign a value to h, you can calculate the sum.
69 is an equivalent expression.
An equation with two equal signs is not a valid mathematical expression, as an equation should have only one equal sign to show the balance between the two sides. If you encounter an expression with two equal signs, it may be a mistake or a misunderstanding of the mathematical concept. To solve an equation correctly, ensure there is only one equal sign and follow the standard procedures for isolating the variable on one side of the equation.