How to Write an Equation

WRITE AN EQUATION:

Four more than six times a number is 18.

• 6x - 4 = 18

• 4x + 6 = 18

• 6x - 4 = 18

• 4x - 6 = 18

WRITE AN EQUATION:

Mel buys shirts for $8 each. He then uses a coupon for $10 off. His total is $30 after the coupon. How many shirts did he buy?

• 8x + 10 = 30

• 8 + 10x = 30

• 8x - 10 = 30

• 8 - 10x = 30

WRITE AN EQUATION: Damian has a job scooping snow. He earns $15 per driveway. He spends $9 on a new shovel. Last week, he made $96. How many driveways did he scoop?

• 15 - 9x = 96

• 15x - 9 = 96

• 15x + 9 = 96

• 15 + 9x = 96

WRITE AN EQUATION

On Tuesday, 331 students went on a field trip. There were 6 buses filled with students and 7 students rode in a van. How many students were in each bus?

• 7x + 6 = 331

• 7x - 6 = 331

• 6x + 7 = 331

• 6x - 7 = 331

An electrician charges $90 per hour along with a $60 traveling fee. If your bill was $600, how many hours (h) did it take the electrician to complete the job?

• 90h - 60 = 600

• 90h + 60 = 600

• 60h + 90 = 600

• 60h - 90 = 600

WRITE AN EQUATION: Steven was getting rid of some baseball cards. He had 68 cards and gives 4 cards to each of his friends. He was left with 16. How many friends did he give cards to?

• 68 + 4x = 16

• 68 - 4x = 16

• 68x + 4 = 16

• 68x -4 = 16

WRITE AN EQUATION:
5 less than half a number is 25

Jill sold half of her comic books and then got sixteen more. She now has 36. With how many did she begin?

In one game, Reggie Bullock scored x amount of 3 point shots. He scored a total of 48 points. What equation should you use to solve for how many 3 point shots, x, he took.

• 48 - 3 = x

• 48(3) = x

• 48x = 3

• 3x = 48

Which are the equation and solution for the sentence, "A number, n, divided by eight tenths equals 24?"

• n - 8 = 24; n = 32

• n ÷ 8 = 24; n = 192

• n ÷ 0.8 = 24; n = 19.2

• 0.8n = 24; n = 30