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1-3 Solving Equations Big Idea: -Solve equations and inequalities.

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Presentation on theme: "1-3 Solving Equations Big Idea: -Solve equations and inequalities."— Presentation transcript:

1 1-3 Solving Equations Big Idea: -Solve equations and inequalities

2 Solving Equations Solution of the equation: a number that makes the equation true. Solution

3 Properties of Equality Reflexive Property x = x Symmetric Propertyif a = b then b = a Transitive Property if c = d and d = e then c = e Addition Property if x = 5 then x +3 = 5 + 3

4 Subtraction Property if y = 2 then y – 1= 2 -1 Multiplication Property if w = 6 then 3w = 3·6 Division Property if a = 10 then a/2 = 10/2 Substitution Property if a = 2 and a + 3 then 2 + 3

5 Ex 1: Solve. A) 7x + 3 = 2x - 12 B 4(m + 9) = -3(m – 4)

6 Ex 2: The formula for the surface area of a rectangular prism is A = 2(lw + lh + wh). Solve the formula for w.

7 Ex 3: Solve for x. Find any restrictions on a and b.

8 Essential Question: How are algebraic expressions different or same from algebraic equations? Answer question on your Notes in complete sentences.


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