SOLVING EQUATIONS/EXPRESSIONS

What is the first step when solving an equation?

• Isolate the variable

• Randomly guess and check

• Operate from left to right.

• Always subtract one side.

Using the "opposite operation" to "undo" and isolate the variable when solving an equation is more commonly called...

• Inverse operations
• math
• variable
• PEMDAS

Tags

CCSS.6.EE.B.7

What is the first step (after setting up your workspace) in solving this equation:

5x + 7 = 12 (Hint: Easier eliminating the "lonely" term first).

• Divide by 5

• Subtract 5

• Multiply by 7

• Subtract 7

What is the first step (after setting up your workspace) to complete when solving this equation?
10 - 3y = 4

• Add 10
• Subtract 10
• Add 3
• Divide by -3

Tags

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.3

Solve for x:
8x - 10 = -34

• 4
• 3
• -3
• -24

Tags

CCSS.7.EE.B.4A

Solve for w:

6w = -12

• 2

• 1.2

• 12

• -2

Solve for b:

.5b = 16 (Hint: .5b or 0.5b means half times the value of "b")

• 8

• 48

• 24

• 32

Translate:

Five "more than" a number

• x + 5

• 5x

• 5 - x

• 5 divided by x

Translate:

Twelve less than a number. (Hint: "less than" means "subtract from."

• 12 - x

• x - 12

• 12x

• x + 12

Translate: 
Four times a number plus six IS 30.

• 4 + 6 = 30
• 4x + 6 = 30
• x + 4 times 6 = 30
• 30 = 4x