The two incorrect definitions are:
"An algebraic expression is a mathematical sentence connecting one statement to another statement with an equal sign (=)."
"To solve an equation means to isolating the variable on the left hand side of the equal sign."
Here we have some definitions pertaining to solving linear equations, and we need to identify which ones are incorrect.
The first incorrect definition is:
"An algebraic expression is a mathematical sentence connecting one statement to another statement with an equal sign (=)."
The sentences that have an equal sign are called equations, algebraic expression is more general than that.
The second incorrect definition is:
"To solve an equation means to isolating the variable on the left hand side of the equal sign."
It is true that you need to isolate the variable, but it does not matter in which side of the sign you do that.
If you want to learn more abut linear equations:
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