Solving Equations And Inequalities For 6th
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The document discusses solving algebraic expressions, equations, and inequalities. It provides steps for evaluating expressions by substituting values and performing operations. For equations and inequalities, the steps are to isolate the variable on one side of the equal or inequality sign and check the solution. Examples provided include evaluating 9a + 11 when a = 6, solving 7x + 17 = 38, and solving the inequality 3x < 15.
Solving Equations And Inequalities For 6th
- 2. Evaluating Expressions Algebraic expression: numbers, letters, and/or symbols connected by an operation or operations When you evaluate expressions, always multiply and divide before adding and subtracting
- 3. Evaluate 9a + 11 when a = 6. Step 1: Identify the operations that are used. Step 2: Substitute 6 for every a in the expression. Find the value of the expression.
- 4. Solving Equations Solve 7x + 17 = 38 Step 1: Identify the operations on the same side as the variable. Step 2: Get 7x alone on one side. Step 3: Get x alone on one side. Step 4: Check.
- 5. Solving Inequalities Inequality: a math sentence that uses <, >, < or equal to, or > or equal to to show that two quantities are not equal The solution of an inequality is a set of numbers.
- 6. Solve 3x < 15 Step 1: Identify the operations on the same side as the variable. This is multiplication. Step 2: Get x alone on one side of the inequality sign. To do this, you have to do the opposite operation (so divide both sides by 3!) The answer is 5.
- 7. Solving Equations and Inequalities Solve x + 6 = 7 Step 2: Get x to the left side of the equal sign. Step 3: Get x alone on the left side of the equal sign (don’t forget….inverse operation!). Step 4: Check your work!