Solving Single Variable Equations

Like terms are 

• numbers or same variable raised to the same power
• equal numbers
• only unknown values

Tags

CCSS.6.EE.A.2B

An inverse operation is

• reversing the sign in an inequality
• using the opposite operation to solve equations
•  A number’s distance from zero

Tags

CCSS.HSA.REI.A.1

-3a + 8 = 14

• a= -2
• a= -7.5
• a= 2
• a= 6

Tags

CCSS.7.EE.B.4A

-5 - 6a = -59

• a= 11
• a= -6
• a= 9
• a= 2

Tags

CCSS.7.EE.B.4A

What is the first step to solve this equation:
11 - 3x = 44

• Add 3 to both sides
• Subtract 11 from both sides
• Add 11 to both sides
• Divide 3 on both sides.

Tags

CCSS.7.EE.B.4A

Solve.  -7x - 11 = 3

• 2
• 14
• -8
• -2

Tags

CCSS.7.EE.B.4A

What step would be used to solve for the "variable term" first?

• add 16 to both sides
• divide both sides by 3
• multiply both sides by 3
• subtract 5 from both sides

Tags

CCSS.7.EE.B.4A

7 + ^a⁄₃ = 5

• a= -2
• a= -6
• a= 3
• a= 15

Tags

CCSS.7.EE.B.4A

33 = 4a - 7

• a=-10
• a=10
• a=4.5

Tags

CCSS.7.EE.B.4A

Where/what is the mistake?

• Line 2 - You should add 12 to both sides.
• Line 4 - You should multiply both sides by the reciprocal.
• Line 4 - You should multiply both sides by the original fraction. 
• Line 5 - There was a calculation error.

Tags

CCSS.HSA.REI.A.1