TABLES AND VALUESSection 1.5

Open Sentence•Mathematical statement that contains algebraic expressions and symbols.

Equation•Mathematical statement that contains an equal sign.

Solution•The value for a variable that makes a statement true.

• It’s called solving the equation

Replacement Set•A set of numbers from which replacements for a variable may be chosen.

Solution Set•Set of elements from the replacement set that make an open sentence true

Find the solutions set of the equation below given the replacement set {2, 3, 4, 5}:

x 2x + 1 = 9 True or False

Find the solutions set of the equation below given the replacement set {-1, 0, 1, 2}:

𝐸𝑞𝑢𝑎𝑡𝑖𝑜𝑛 :3 𝑥−4=2x 3x – 4 = 2 True or False

Find the solutions set of the equation below given the replacement set {-2, -1, 0, 1}:

𝐸𝑞𝑢𝑎𝑡𝑖𝑜𝑛 :3 (2 𝑥−1 )=−9x 3(2x-1)=-9 True or False

Solve using the Order of Operations

𝑥=3+ (42−3 )÷2

Solve using the Order of Operations

𝑥=82− (2+8 ) ∙3

Solve using the Order of Operations

𝑥=62÷9−7+3

Solve:

8+𝑛=9

Solve:

6+4 (2+3 )+𝑥=30

Solve:

6− (23−12 )+𝑦=17

Solve:

2+8 (3+2 )+𝑥=𝑥+6 ∙7

Solve:

(2 ∙5 )+ 𝑐2

3=𝑐2÷ (15+2 )+10

Homework• p. 34 (11-32)