Solving and Writing Equations

Vocabulary

100

What operation does the word SUM tell you to use?

ADD

200

What operation does the word DIFFERENCE tell you to use?

SUBTRACTION

300

What vocabulary word means the answer to a division problem?

QUOTIENT

400

What is the vocabulary word that is used to identify the 4 in the equation?

3x+4=10

CONSTANT

500

What is the vocabulary word is used to identify the 3 in the equation?

3x+4=10

COEFFICIENT

Writing

100

Write an expression to represent the sum of a number and 10

x+10

200

Write an expression to represent 9 more than twice a number.

9+2x    or  2x +9

300

Write an equation to show 8 less than a number is 18.

x-8=18

400

Write an equation to represent:

Maya bought 3 t-shirts and a pair of pants that cost $20.  Her total bill was $42.

3t+20=42

500

Write an equation to represent the give situation.

Bryn has 20 pairs of shoes.  This is 1/4 of the amount that her mom has.  

1/4x =20

One Step

100

Solve for x.

x/10=5

x=50

200

Solve for x.

-4x=20

x=-5

300

Solve for x.

x-12=-20

x=-8

400

Solve for x.

1/4x=20

x=80

500

Solve for x.

-13.64+x=41

x=54.64

Two Step

100

What would you do first to solve this equation?

3x-7=20

x=5

200

What would you do first to solve this equation?

8-2x=16

Subtract 8

300

Solve for x.

2x+10=20

x=5

400

x/4+22=38

x=64

500

-14-2x=-20

x=3

Distribute/Combine

100

Combine like terms.

3x-2+5x

8x-2

200

Distribute.

3(x-4)

3x-12

300

Distribute.

-4(3x-5)

-12x+20

400

Distribute and Combine

7(x-8)+10

7x-46

500

Distribute and Combine

8-2(x-4)

-2x+16