One Step Equations and PEMDAS

When solving an equation, our goal is to:

• add all the numbers together.

• use a calculator.

• eat lunch.

• isolate the variable to solve.

Solve the equation:
4p = 16

• p = 12

• p = -12

• p = -4

• p = 4

What would be the best first step to solving the equation?
-3=x+5

• add 3 to both sides

• subtract 5 from both sides

• add 5 to both sides

• subtract -5 from both sides

5 less than a number is 15.

• x - 5 = 15

• 5 - x = 15

• 15 - x = 5

Mathematical Equivalence

ON

Mathematical Equivalence

ON

Mathematical Equivalence

ON

Solve: y -7 = 5

Mathematical Equivalence

ON

Mathematical Equivalence

ON

The solution to the equation x + 4 = 25 is x = (a)  

• x = 29

• x = 100

• x = 5

• x = 21