4.21 Writing & Solving One-Step Equations Day 1

The objective when solving an equation is to....

• isolate the variable.

• use all 4 operations.

• guess and check.

• combine like terms.

x + 12 = 20

• x = 32
• x = -32
• x = 8
• x = -8

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CCSS.6.EE.B.7

x - 32 = 49

• x = 17
• x = 71
• x = 81
• x = 49

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CCSS.6.EE.B.7

5.    6b = 30

• x = 36
• x = 24
• x = 180
• x = 5

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CCSS.6.EE.B.7

z + 45 = 92

• z = -47
• z = 137
• z = 47
• z = -137

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CCSS.6.EE.B.7

x - 62 = 123
How should you show your work to isolate the variable and solve the equation?

• Add 62 to each side. 
• Subtract 62 from each side.
• Multiply each side by 62.
• Add 123 to each side.

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CCSS.6.EE.B.7

Solve the equation
3x = 27. 

• x = 24
• x = 81
• x = 9

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CCSS.6.EE.B.7

17 = x + 3

• x = 20
• x = 14
• x = 13
• x = 19

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CCSS.6.EE.B.7

4 + b = 30

• -34
• 34
• -26
• 26

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CCSS.6.EE.B.7

10x = 90

• x = 80
• x = 100
• x = 10
• x = 9

Tags

CCSS.6.EE.B.7