Two-Step Equations One Step at a Time

Look at the equation 4k - 2 =10.

Our first step is "first, we add or subtract." What number is being added or subtracted here?

• 2

• 4

• 10

Tags

CCSS.HSA.REI.A.1

In the equation 4k -2 = 10 Is the 2 being added to the 4k or subtracted?

• Added

• Subtracted

Tags

CCSS.HSA.REI.A.1

What is the mathematical inverse (opposite) of subtraction?

• Addition

• Subtraction

• Multiplication

• Division

Tags

CCSS.6.EE.B.7

If the inverse operation of subtraction is addition, what should be do with the 2?

• Add 2 to both sides

• Subtract 2 from both sides

• Add 2 to one side

• Subtract 2 from one side

Tags

CCSS.HSA.REI.A.1

Our original equation of 4k - 2 =10 is now 4k =12.

Our second step is "then, we multiply or divide." Is the variable, k, being multiplied or divided by 4?

• Multiplied

• Divided

Tags

CCSS.HSA.REI.A.1

What is the mathematical inverse (opposite) of multiplication?

• Addition

• Subtraction

• Multiplication

• Division

Tags

CCSS.HSA.REI.A.1

If the inverse of multiplication is division, what should we do with the 4?

• Divide both sides by 4

• Multiply both sides by 4

• Divide one side by 4

• Multiply one side by 4

Tags

CCSS.HSA.REI.A.1

We have solved for k.

k =

Tags

CCSS.6.EE.B.7

Look at the equation 8b + 9 = 41.

"First we add or subtract." Which number is being added or subtracted?

• 8

• 9

• 41

Tags

CCSS.HSA.REI.A.1

If we are adding 9, what operation is the inverse (opposite) of addition?

• addition

• subtraction

• multiplication

• division

Tags

CCSS.2.NBT.B.5