One Step Addition Subtraction Equations

Solve for the variable.

a - 27 = 41

• a = 68

• a = -41/27

• a = -1107

• a = 14

67.9 = c - 4.45

• 72.35

• 68.35

• 71.39

• 71.89

Rylan's mom went shopping to buy Rylan and Phoebe basketball shoes. She bought Rylan a pair that was $30.82. Together, she spent $87.63. What was the cost of Phoebe's shoes? Choose the algbraic equation that fits the scenario.8

• 30.82 + p = 87.63

• p - 30.82 = 87.63

• 87.63 - p = 30.82

• 87.63 + 30.82 = p

Solve for the variable.

x - 4 = 3

• x = -7

• x = 1

• x = 7

• x = -1

The objective when solving an equation is to....

• isolate the variable.

• check the solution.

• guess and check.

• Combine Like Terms.

On Monday Homeroom 104 turned in 64 canned goods. This is 17 less than the number of canned goods turned in by Homeroom 106. Which equation best matches the situation?

let h = homeroom 106

• h - 17 = 104

• h + 17 = 64

• h - 17 = 64

To solve: x + 11 = 3

• subtract 11

• Subtract 3

• Subtract -8

• Add -3

x - 8 = 42

• Subtract 8

• Subtract 42

• Add 8

• Add 42

To solve: x + (-6) = 13

• Subtract 6

• Add 6

• Add 13

• Subtract 13