7th Grade Equations and Inequalities

1-Step Equations

100

x + 16 = 38

x=22

200

x - 8 = -11

x= -3

300

-3x = 27

x = -9

400

x/5 = -4

x = -20

500

-7 + x = -15

x = -8

2-Step Equations

100

4x + 5 = 17

x = 3

200

x/7 + 3 = 8

x=35

300

2x+1/2 = 3/4

x = 1/8

400

2(3x + 6) = 30

x = 3

500

-4( 2x + 4) = -56

x=5

1-Step Inequalities

100

x + 23 > -11

x > -34

200

x - 6 < 23

x < 29

300

16x > -48

x > -3

400

x/-9 <= -4

x >= 36

500

-11x < 132

x > -12

2-Step Inequalities

100

2x + 11 > 23

x > 6

200

5x - 9 < 11

x < 4

300

x/2 + 6 >= 13

x>= 14

400

-3x + 9 > 36

x < -9

500

-5x - 12 > 23

x < -7

VOCAB & More

100

How many solutions are there to an equation?

1

200

What you do to one side, you must also do ...

To the other

300

When Graphing an inequality, how can you till which direction to graph your arrow?

As long as the variable is on the left, use the symbol as an arrow to point you in the correct direction.

400

When Graphing an inequality, what do you do to the bubble with all 4 symbols?

no line, no fill.

Line = Fill.

500

What are the 2 rules with inequalities that would require you to flip your symbol?

If the variable is on the right side and if you multiply or divide by a negative number.