Adding and Subtracting One Variable Equations

An equation is...

• a problem that contains at least one variable and at least one operation; no equal sign

• a mathematical sentence showing two expressions are equal.

• The solution for a variable

• The value that results in a true sentence

Tags

CCSS.6.EE.B.5

Inverse Operations are operations which undo each other.

• True

• False

Tags

CCSS.HSA.REI.A.1

d + 3 = 8

d = ?

• d = 3

• d = 8

• d = 5

• d = 11

Tags

CCSS.7.EE.B.4A

a - 1.1 = 2.3

a = ?

• a = 3.4

• a = 3

• a = 1.2

• a = 1.1

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7

What is the inverse operation of adding?

• Adding

• Subtracting

• Multiplying

• Dividing

Tags

CCSS.2.NBT.B.5

What is the inverse operation of subtracting?

• Adding

• Subtracting

• Multiplying

• Dividing

Tags

CCSS.HSA.REI.A.1

Which equation has x = 5 as the solution?

• x + 15 = 10
• 2x = 5
• 2x = 10

Tags

CCSS.6.EE.B.5

What is the solution of r - 11 = 5

• 11

• 14

• 15

• 16

Tags

CCSS.6.EE.B.7

14 = x - 5

• -19
• 5
• 19
• 9

Tags

CCSS.6.EE.B.7

y+25=80
What steps do you need to solve this problem?

• Add 25 to both sides
• Subtract 25 to both sides
• Divide 25 on both sides
• Multiple 25 on both sides

Tags

CCSS.6.EE.B.7