Transcript Solving Multiplication Equations

Solving
Multiplication
Equations
How do we solve a multiplication
equation involving a variable?
• In order to solve a multiplication
equation, use the inverse to isolate
the variable.
• What does inverse mean?
• What is the inverse of multiplication?
• What does isolate mean?
Examples:
2x = 8
Beginning Equation
2x 8

2 2
Use division to isolate the
variable. Make sure you
do the same thing to both
sides.
x=4
Answer!
Don’t forget to check your
solution.
2x = 8
Put your solution of x= 4
back into the original
equation.
2(4) = 8
8=8
Both sides have the
same value. You were
CORRECT!
Solve 39 = 3y
Check your solution.
Solve 6m = 42
Check your solution.
Solve –4z = 60
Check your solution.
Solve –64 = –16b
Check your solution.
Solve 0.4x = 9.2
Check your solution.
Solve 5.4 = 0.3p
Check your solution.
The tortoise is one of the slowest land
animals, reaching an average top speed
of about 0.25 miles per hour. At this
speed, how long will it take a tortoise to
travel 1.5 miles?
Use d=rt
Distance= rate • time
Debbie spends $6.85 on cookies at the
bakery. The cookies are priced at $2.74
per pound. How many pounds of
cookies did Debbie buy?