introduction to algebra

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Across
  1. 4. The number multiplied by the variable in an algebraic expression. In the expression 3x+5, 3 is the coefficient of x.
  2. 5. A symbol that indicates a mathematical operation, such as addition (+), subtraction (-), multiplication ( or *), or division ( or /).
  3. 7. An expression that contains at least one variable. For example, 5x+2
  4. 9. To find the value of an expression by substituting numbers for variables and simplifying. It's like solving the puzzle to see what the expression is really worth when x=2.
  5. 10. A property that lets you multiply a sum by multiplying each addend separately and then adding the products. It's like sharing the love (or the multiplication!) For example, a(b+c)=ab+ac.
  6. 11. The specific order in which mathematical operations should be performed (PEMDAS/BODMAS: Parentheses/Brackets, Exponents/Orders, Multiplication and Division, Addition and Subtraction) to get the correct answer.
  7. 13. To rewrite an expression in its simplest form by combining like terms and performing operations. For instance, 2x+3x can be simplified to 5x.
Down
  1. 1. A symbol, usually a letter, that represents a number. For example, in the expression 3x+5, x is the variable.
  2. 2. A term in an algebraic expression that is a constant. It doesn't contain any variables. In the expression 2x+7, the constant term is 7.
  3. 3. A combination of variables, numbers, and at least one operation. For instance, 4x−7 is an expression.
  4. 4. A number that doesn't change its value. In the expression 3x+5, 5 is the constant because it's just a plain number without any variables attached.
  5. 6. An expression that contains variables, numbers, and operations. For example, 2x+3y−8 is an algebraic expression.
  6. 8. A single number or variable, or numbers and variables multiplied together. Terms are separated by + or – signs in an expression. For example, in the expression 3x+5y−2, the terms are 3x, 5y, and −2.
  7. 12. A statement that two expressions are equal. Equations have an equals sign (=). For example, 2x+5=11 is an equation.