Solving Equations

Front

Solve for y:
-5 - 7y = -20y + 34

Back

y = 3

Front

7(2x - 4) = 42

Back

x = 5

Front

Solve the equation: 4x + 3 = -5

Back

-2

Front

The objective when solving an equation is to...

Back

isolate the variable.

Front

What operation would you perform first and then second when solving for m in the equation: 10 + 7m = 17?

Back

subtract 10, divide by 7

Front

Kaden's phone bill: $12 flat fee + $0.05/minute. Last month's bill: $18. How many minutes did he talk?

Back

120

Front

Sophie has $14 and plans to save $5 each week until she has $64. How many weeks will it take?

Back

10 weeks

Front

At one store a trophy costs $12.50. Engraving costs $0.40 per letter. At another store, the same trophy costs $14.75. Engraving costs $0.25 per letter. Write an equation for how many letters the costs will be the same.

Back

12.50 + 0.40x = 14.75 + 0.25x

Front

UPS charges $7 for the first pound, and $0.20 for each additional pound. FedEx charges $5 for the first pound and $0.30 for each additional pound. How many pounds will it take for UPS and FedEx to cost the same? Write an equation.

Back

0.20p + 7 = 0.30p + 5

Front

UPS charges $7 for the first pound, and $0.20 for each additional pound. FedEx charges $5 for the first pound and $0.30 for each additional pound. How many pounds will it take for UPS and FedEx to cost the same?

Back

20 pounds