Two Step Equation Review

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:

Casey has $50 to spend at Best Buy. She wants to buy a DVD for $14 and some CDs that cost $12 each. How many CDs can she buy?

• 12 + 14x = 50

• 12x + 14 = 50

• 50 - 14 - 12 = x

• 50x + 12 = 14

WRITE AN EQUATION:

While at the music store, Drew bought 5 CDs, all at the same price. The tax on his purchase was $6, and the total was $61. What was the price of each CD?

• 5x + 6 = 61

• 5 + 6x = 61

• 5x - 6 = 61

• 5 - 6x = 61

Four more than six times a number is 18.

• 6x - 4 = 18

• 4x + 6 = 18

• 6x + 4 = 18

• 4x - 6 = 18

Take a look at the example and then tell me who is correct and how you know in the answer box below.

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Solve for S and write you answer in the box below.

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Isolating the variable means to get the variable __________.

• By itself

• with the coefficient

• on the left side

• canceled out

if you need to solve the equation 3i+4=16, what would be the first step?

• Add 4 to both sides

• subtract 4 from both sides

• add 4+3

• divide both sides by 3

Look at the example and tell me who is correct and how you know in the answer box below.

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