Equation with a variable

Vocabulary

100

A value that doesn't change

Constant

200

A number multiplied by variables

Coefficient

300

A single expression

Term

400

What is the definition of Variables

A letter or term that represents an unknown number(x,y)

500

What is the definition of Operator

Multiplication, addition, subtraction or division

Equation

100

Find x:

3x = 9

x = 3

200

Solve and find y :

6y - 7 = 4y + 5

y = 6

300

Solve and find x :

3x  + 14 = - 4x - 7

x = - 3

400

Solve and find n :

4n x 2 = 42 + 14

n = 7

500

Solve and find c :

3x² + 14c - 13 = 11c + 3x² +2

c = 5

True or False

100

True or False

11x - 4 = 7

x = 2

A: False

x = 1

200

True or False

4n + 56 = -4n + 8

This equation has no solution

A: False

This equation has one solution

300

True or False

-1.82 + 3p = 1.18

p = 1

A: True

400

True or False

Ax² - 45 - 53 = 3x² - 98

if this equation has infinitely many solutions, what is A?

A = 3

500

True or False

A movie theater has 120 seats. After selling tickets for a group of 75 people, there are still x empty seats. 

x is 45

False

Number of Solutions

100

How many solutions does this equation have?

3x = 4 + 3x

no solution / one solution / infinitely many solutions

no solution

200

How many solutions does this equation have?

-20n x 2 = 2(-20n + 7 - 7)

no solution / one solution / infinitely many solutions

infinitely many solutions

300

How many solutions does this equation have?

3y = 99 + 9

infinitely many solutions / one solution / no solution 

One solution

400

How many solutions does this equation have?

7(n+6) = 5n + 2n

no solution / one solution / infinitely many solutions

no solution

500

How many solutions does this equation?

14(3n + 5) = 6 x 7n + 25 + 45

no solution / one solution / infinitely many solutions

infinitely many solutions

Words problem

100

A farmer has some chickens on his farm. If he buys 12 more chickens, he will have 30 chickens in total. How many chickens does the farmer have now?

Answer: 18

200

Jonah runs his own bakery. This morning, Jonah baked 42 peach pies. He also baked some more after lunch. In total, he baked 64 peach pies.

How many peach pies did Jonah bake after lunch?

Equation: 42 + N = 64

N = 22

Jonah baked 22 peach pies after lunch.

300

Tina went to Chicago for her vacation. She had $560 at total. When she came back from Chicago, she has $27 left. How much money did Tina spent on her vacation?

$533

400

A bakery sold 3 times as many muffins as cupcakes. If the total number of muffins and cupcakes sold was 64, how many cupcakes

answer: x + 3x = 64

x = 16

500

A store is selling pencil for $2 each and eraser for 1$ each. Maria spends 20$ and buys twice as many pencil as erasers. How many erasers did she buy?

Answer: 4