An equation has an.....
Equal Sign (=)
M / 12 = 8
m = 96
9x - 1 = 81
x= 9
A baker made 48 cookies. He put them into equal groups on 6 plates. How many cookies are on each plate?
c=8
The letter in an equation is called the....
variable
x − 7 = 13
x = 20
15 = 4m - 1
m= 4
Emily bought 3 notebooks and a pen. The pen cost $2. If she spent a total of $14, how much did each notebook cost?
n=4
What is an inverse operation?
The opposite of a given operation.
m − 9 = −13
m = -4
2x+3=11
x=4
If you double a number and add 3, you get 11. What is the equation?
2x+3=11
When solving an equation, what is the goal?
To isolate the variable
Twice a number is 34.
n= 17
5a−7=13
a=4
Five less than triple a number is 13. What is the equation?
3x−5=13
What is the inverse of subtraction is
addition
4+ p=11
p =7
You earn $15 per hour at your job. Each way, you pay $2.50 in bus fare. How many hours do you have to work in a day to take home $100?
DOUBLE VALUE
15h - 5 = 100
h= 7 hours.
A number divided by 4, then increased by 9, equals 14. What is the number?
DOUBLE VALUE
x=20
The sum of a number and 6, when multiplied by 2, is 20. What is the number?
DOUBLE VALUE
x=4