for each equation, write the inverse operation needed to solve for the variable. then, check your...
TRANSCRIPT
For each equation, write the inverse operation needed to solve for the variable. Then, check your answer!
a.) y + 7 = 14 subtract 7 b.) a - 21 = 10 add 21
c.) 5 - s = 25 subtract 5 d.) x – (-3) = 5 subtract 3
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REVIEWInverse Operations
REVIEW
Solving One StepAddition & Subtraction
Equations
To solve equations, you must use inverse operations in order to isolate the variable on one side of the equation.
Whatever you do to one side of an equation, you MUST do to the other side!
+5+5
Examples:
y + 9 = 16 - 9 -9 The inverse of adding 9 is subtracting 9 y = 7
m - 16 = 4 +16 +16 The inverse of subtracting 16 is adding 16 m = 20
Remember - whatever you do to one side of an equation, youMUST do to the other!!!
x + 8 = 12 - 8 - 8 x = 4
x + 2 = 14 -2 -2 x = 12
x + 5 = 13 - 5 - 5 x = 8
One Step Equations (with + and -)
Solve each equation then click the box to see work & solution.
click to showinverse operation
x - 23 = 43 +23 +23 x = 66
x - 18 = 51 +18 +18 x = 69
x - 4 = 7 +4 +4 x = 11
click to showinverse operation
click to showinverse operation
click to showinverse operation
click to showinverse operation
click to showinverse operation
click to showinverse operation
NOW…Solving One Step
Multiplication & Division Equations
What is the INVERSE operation for:
Addition? Subtraction
Subtraction? Addition
Multiplication? Division
Division? Multiplication
click to showinverse operation
click to showinverse operation
click to showinverse operation
click to showinverse operation
Examples:
6m = 72 6 6 The inverse of multiplying by 6 is dividing by 6 m = 12
2 x m = 3 x 2 The inverse of dividing by 2 is multiplying by 2 2 m = 6
Remember - whatever you do to one side of an equation, you MUST do to the other!!!
3x = 15 3 3 x = 5
4m = 12 4 4 m = 3
25 = 5n 5 5 5 = n
m = 12 2 2 x m = 12 x 2 2 m = 24
x = 75 5x = 7 x 5 5 x = 35
4 = x 66 x 4 = 6x 6 24 = x
One Step Equations (mult & div)Solve each equation in your journal or on a whiteboard.
Then, check your answers below!
click to showinverse operation
click to showinverse operation click to show
inverse operation
click to showinverse operation
click to showinverse operation
click to showinverse operation