equations
10
Expression. Equations have equals signs.
7
formula expression
equations
10
Expression. Equations have equals signs.
7
formula expression
It is a linear expression in two variables. As an expression it cannot be solved. Furthermore, to solve equations in two variables you need at least two linear equations.
Linear equations are a small minority of functions.
chemical equations
Numerical equations have only numbers and symbols, while algebraic equations have variables also.
A chemical equation is the graphic expression of a chemical reaction.
They both have variables.
True