Algebraic Equations

12.5n = 32

• n = 400

• n = 2.56

d/6 = 13

• d = 78

• d = 2.1

3.4m = 20.4

• m = 6

• m = 69.36

2(3x + 2) + 5x

• 11x + 2

• 11x + 4

• 6x + 4 + 5x

When you're trying to solve for the unknown you isolate the variable by...

• Doing the inverse operation.

• Doing the same exact thing as the original problem.

• Add

• Subtract

Solve the equation:
4p = 16

• p = 12

• p = -12

• p = -4

• p = 4

Solve the equation:
x/3 = 12

• x = 36

• x = 4

• x = 15

• x = 3

Solve the equation:
x/3 = 4

• x = 12

• x = 1

• x = 16

• x = 3

To Solve the Equation Below, you'd
x - 62 = 123

• add 62 to each side

• subtract 62 from each side

• multiply each side by 62

• Add 123 to each side

Four times Audrey's age plus 7 is Parag's age.  Parag is 51.  What is Audrey's age?

• 7

• 11

• 15

• 212