Equations

Equations 1

100

What is step 3 when solving equations?

Move the variable

200

x/6 = -2

x = -12

300

(x + 11) / 8 = -3

x = -35

400

2x + 9 = 7x - 6

x = 3

500

6n + 7 - 2n - 14 = 5n + 1

n = -8

Equations 2

100

Simplify the following:

3x + 5 + 4x - 2

7x + 3

200

x + 7 = -5

x = -12

300

2x + 5 = 25

x = 10

400

8y + 32 = 7y + 38

y = 6

500

2.7x + 9.6 = 3.7x + 3

x = 6.6

Equations 3

100

Simplify the following:

-3(5 + 3x)

-15 - 9x

200

(2/3)x = -2

x = -3

300

5x + 2 = 27

x = 5

400

50x + 175 = 70x + 75

x = 50

500

3(2x + 1) = 8x - 7

x = 5

Equations 4

100

Combine like terms

3xy - 2 + 5x + 6 + 5xy

200

3x = 18

x = 6

300

What are the three types of solutions an equation can have?

One solution

No solution

Infinitely many solutions

400

4n + 21 = 5n + 1

n = 20

500

-3x - 5 - x + 8 = -4x + 7

No Solution

Equations 5

100

Simplify the following:

5(2x + 3) + 4x

14x + 15

200

x - 4 = 10

x = 14

300

5x - 6 = 9

x = 3

400

How do you get rid of multiple fractions in an equation?

Find the common denominator.

500

6x + 18 = 2(3x + 6) + 6

Infinite solutions