Expressions
Solving Equations
Word Problems
Write an equation
100
Simplify the expression (combine like terms)
2x + 4 + 7y - 3y + 5x - 1
7x + 3 + 4y
100
Solve for x
8x - 7 = 57
x = 8
100
Mobutu got 120 pieces of valentines candy last year. He could eat 4 a day. Which equation matches how long it took him to get to 12 pieces left?
a. 120 - 4x = 12
b. 120 + 4x = 12
c. 12 + 4x = 120
d. 12 - 4x = 120
a. 120 - 4x = 12
100
Write an equation to find the value of x.
100 = x + 7
200
Factor the expression
9x - 45
9 (x - 5)
200
Solve for x
1/3 x + 2 = 6
x = 12
200
Write an inequality to match the problem.
Mrs. Otte wants more dogs. She has $1,000 to spend. Each dog costs $125. How many dogs can she buy?
125x = 1,000
200
Write an equation to solve for x.
3x + 1 = 112
300
Simplify the expression
2 1/4 x - 4y + 3 3/4 x + 8y
6x + 4y
300
Solve when x = 3 and y = 4
3x - 2y + 10
11
300
Write an equation to match the word problem.
Joao loves Goku. Every day, he buys a 2 Goku stickers. He already has 14 stickers. How many days will it take him to have 50 stickers?
2x + 14 = 50
300
Write an equation to solve for the perimeter of the trapezoid.
7x + 3 + 6x + 3 + 5x + 6x + 3
24x + 9
400
Factor the expression
4x + 28
4 (x + 7)
400
Mrs. Otte solved the equation below incorrectly.
3/5 + x = 4/5
(5/3) 3/5 + x = 4/5 (5/3)
x = 4/3
She multiplied both sides by 3/5 instead of subtracting.
400
Write an equation to solve for the perimeter of the trapezoid.
x + 5 + 2y + 1 + 3x - 1 + 2y + 1
4x + 6 + 4 y