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Warm Up Review Fractions
Add
Multiply
Subtract
Divide
Reciprocal
HW Solutions
2.2 Solving One step Equations
Learning Targets:
1. Explain steps to solving an equation using the property of numbers.
2. Solve linear one step equations.
3. Use rules for adding, subtracting, multiplying, and dividing with fractions.
Inverse Operations
­­ operations that undo each other
Equivalent Equations
­­ equations that have the same solution
You can, add or subtract, multiply or divide, the same number from each side of an equation to form an equivalent equation.
*** The goal in solving an equation is to get the variable alone on one side of the equal sign.
*** To solve an equation, you "undo"
what is happening to the variable.
In other words you use the inverse
operation.
*** To keep an equation balanced,
you must do the same thing to both
sides of the equation.
Solve by Adding
y - ¾ = ¼
c ­ 22 = 54
­ 5 + x = 4
Solve by Subtracting
m + 63 = 79
Solve by Dividing
8y = ­ 128
15x = 100
39 = ­ 3r
- x = 26
Solve by Multiplying
w = ­ 4
7
5 = x
­ 8
t / 7 = 10
HW # 13
Worksheet 2.2 (18­54) even
** Copy problems onto another sheet of paper and show steps/work!!