Equations and Inequalities

Solve for x:

2x + 1 = 9

(type the numerical answer only)

Solve for x:

7 (x + 8) = 49

(type the numerical answer only)

Solve the Inequality and Select the CORRECT GRAPH:

-4 > h - 2

• -2 > h

  OPEN DOT on -2, shaded to the right

• -2 < h

  CLOSED DOT on -2, shaded to the left

• -2 > h

  OPEN DOT on -2, shaded to the left

• -2 < h

  CLOSED DOT on -2, shaded to the right

Solve the Inequality and Select the CORRECT GRAPH:

n - 9 ≥ 5

• n ≤ 14

  CLOSED DOT on 14, shaded to the right

• n ≥ 14

  CLOSED DOT on 14, shaded to the left

• n ≥ 14

  CLOSED DOT on 14, shaded to the right

• n ≤ 14

  OPEN DOT on 14, shaded to the right

When do you flip the inequality sign when solving inequality problems?

SELECT ALL THAT APPLY!

• When you multiply or divide by a negative number

• When your answer is a negative number

• When there is a negative number or coefficient attached to your variable by multiplication or division

• When you add or subtract the variable by a negative number

-5(x - 6) = 15

(type the numerical answer only)

What is a Coefficient?

• Is a number used to multiply a variable.

• A symbol for a value we don’t know yet.

• A fixed value.

• Is one side of the equal sign.

What is a Equation?

• Says that two things are equal.

• When two numbers are not equal.

• The same as or more than.

• The same as or few than.

What is an Inequality?

• Says that two things are equal.

• When two numbers are not equal.

• The same as or more than.

• The same as or few than.

Simplify the expression:

-6x + 5 + 4x - 10

• -7x

• -2x-5

• 7x

• 10x+15