8.8C Solving Equations

Front

3x + 4 = 2x - 4

Back

-8

Front

What is the first step to solve the equation 12x + 32 = 62 + 15x?

Back

Subtract 12x to both sides

Front

8w - 8 = - 4x + 16

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

First: subtract 10, Second: divide by 7

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

Front

What value of k makes this equation true? Options: k = -2, k = -8, k = 8/3, k = 2

Back

k = -8

Front

5x - 14 = 8x + 4

Back

x = -6

Front

7x = 3x + 24

Back

6

Front

472 students are going on a field trip. 120 students will be returning home and the rest will be spending the night in cabins. If a cabin sleeps 8 people, how many cabins need to be rented? Options: 4 cabins, 44 cabins, 59 cabins, 74 cabins

Back

44 cabins