Two-Step Equations!
5x+5=30
x=5
x/3 + 5 = 10
x=15
You buy some notebooks that each cost $3. You also pay a $6 fee. Your total is $24.
How many notebooks did you buy?
3x+6=24
6 notebooks
3(3+2)
9+6 = 15
-6x8
-48
2x-6=18
x=12
x/10 + 6 = 11
x=50
A number is multiplied by 5 and then 10 is subtracted. The result is 35. What is the number?
5x-10=35
9
10(2+5)
20+50 = 70
Find the principle square root of 49
7
x/4 + 6 = 10
x=16
3x-9=12
x=7
You earn $5 per chore but spend $10. You have $40 left. How many chores did you complete?
5x-10=40
10 chores
2(x+2x)
2x+4x = 6x
Simplify:
6:42
1:7
*divide by 6!
x/8 + 3 = 7
x=32
6x+7=31
x=4
You split a bill evenly among 4 friends. A $4 tip is added and each person pays $10. How much money is spent altogether?
$10 x 4 friends = $40
5(5x+4) + 1
25x+20+1 = 25x+21
Find the constant of proportionality:
2,4
6,12
9,18
12,24
2
x/6 + 5 = 11
x=36
12x-24=60
x=7
You buy 12 bags of jolly ranchers for 4 dollars each. Then you decide to buy a bag of chips for 5 dollars. How much money did you spend altogether?
12(4) + 5 = x
48+5 = 53 dollars
8(2x+3x) + 3y
16x+24x+3y = 40x+3y
Write in Scientific Notation:
470,000
4.7x10^5