1 step equations
5x+3= 28
x=5
Jimmy bought 20 donuts for the total price of $22. He wants to know how much the cost is per donut.
20x = $22
x= $ 1.10 per donut
variable
x or other symbols in expression
5(x-4)= 40
5(x-4)=40
5x-20=40
5x=60
x=12
2/3x+ 7= 21
x=21
John's class made a total of $100 selling raffle tickets. They sold 40 tickets , but how much was the price of each ticket?
40x= $100
x=$2.50 each ticket
write an equation
x+3= 15
equation must have a term, variable, and an equal sign
3(4-x)=50
3(4-x)=50
12-3x=50
-3x= 38
x= -12.67
0.6+x= 14
x=13.4
The valentine dance tickets were $4 per student. The total sold was $156. How many students attended the dance?
4x=$156
x= 39 students attended the dance
like terms
5x , 3x
4, 3
Why animal can be as big as an elephant?
The blue whale
-6+ x=16.6
x=22.6
Write an equation and solve
Daily Double
isolate the variable
x=3
the variable stands alone
4(x-3)= 28
4(x-3)=28
4x-12=28
4x=40
x=10
3/4x-7=10
x= 22 2/3
What has a trunk but is not an elephant?
A tree
distributive property
5(x+3)= 45
5x+15=45
5x=30
x=6
What game did the elephant play with the ant?