Algebraic Concepts

2. A mathematical statement that asserts the equality of two expressions.
3. A mathematical sentence that shows the relationship between quantities that are not equal.
5. A mathematical phrase that can contain numbers, variables, and operations.
7. A symbol representing an unknown or arbitrary number.
8. The numerical factor in a term of an algebraic expression.
10. The side of a system of equations represented by the y-axis.
11. To express a mathematical expression in its simplest form.
12. A number or expression that divides another number or expression evenly.

1. A method for solving a system of equations by adding or subtracting the equations to eliminate one variable.
2. A number that indicates the power to which another number (the base) is raised.
4. An equation of the second degree, typically in the form ax^2 + bx + c = 0.
6. A method for solving a system of equations by substituting the expression for one variable from one equation into the other.
9. An expression consisting of variables and coefficients, involving only the operations of addition, subtraction, multiplication, and non-negative integer exponents.