Order of Operations
One-Step Equations
Two-Step Equations
Two-Variable Equations
Writing Equations
100
2 x 4(16-7) 2 x 4 x 9 8 x 9 72
What is 2 x 4(16-7)
100
What is n+6=-9 -9 -6
n=-15
100
What is 3x+7=34 -7 -7
x=27
100
17 = 5x + y
17 - 5x = 5x + y - 5x - 5x + 17 = y y = - 5x + 17
100
Gia has $17 in her piggy bank. How much money does she need to buy a game that costs $68?
17 + x = 68 x = 51
200
(12+5)x(6/3)5 17 x 2 x 5 34 x 5 170
What is (12+5)x(6/3)5
200
What is 6+n=12 12-6
n=6
200
What is 8n-5=11 +5 +5
n=2
200
4y=12n
4y/4 12n/4 3x
200
Twelve is sixteen less than four times a number.
12 = 4x - 16
300
6/2 x 9 +(45/9) 6/2 x 9 + 5 2 x 9 + 5 18 + 5 23
What is 6/2 x 9 +(45/9)
300
What is n/3=6 6 x 3
n=18
300
What is x/7+6=12 -6 -6
x=42
300
2x - 4y = - 13
x = 2y - 13/2
300
4 less than 3 times a number equals 23.
3n-4=23 +4 +4 n=9
400
(7+14)9/3-7(6-5) 21 X 3-7 X 1 63 - 7 X 1 63 - 7 56
What is (7+14)9/3-7(6-5)
400
What is x-50=400 400+50
x=450
400
What is 8+2x=13 -8 -8
x=3
400
- 3x - 8y = - 8y + 13
0 = 3x + 13
400
Katy is n years old. In 10 years she will be 25 years old.
n+10=25 n=15
500
2+18/6-2(7+4/2) 2+18/6-2 X 9 2+3-2 X 9 2+3-18 5-18 -13
What is 2+18/6-2(7+4/2)
500
What is 44+6n=98 -44 -44
n=9
500
- 3x + 6y = 4x + 18
x = 6y/7 - 18/7
500
The quotient of fifty and five more than a number is ten
50/n+5=10 -5 -5
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