Solving Equations Check-Up

Solving Equations Check-Up

by Jill Bolda

When solving the following equations... what step would you do FIRST?​

You're not actually going to solve the equation right now.

Multiple Choice

$$-4+45b=17$$  

• Subtract 17 from both sides

• Add 4 to both sides

• Divide both sides by 45

• Multiply both sides by 45

Multiple Choice

$$156=-13c+12$$  

• Subtract 12 from both sides

• Add 13 to both sides

• Subtract 156 from both sides

• Divide both sides by -13

Multiple Choice

$$\frac{k}{11}-15=-7$$  

• Add 15 to both sides

• Add 7 to both sides

• Divide both sides by 11

• Multiply both sides by 11

Multiple Choice

$$15=\frac{m}{-4}+18$$  

• Subtract 15 from both sides

• Add 18 to both sides

• Add 15 to both sides

• Subtract 18 from both sides

Combine Like Terms First

​Sometimes we need to tweak an equation to make it make more sense...

​Combine Like Terms

What would we do FIRST to make these simpler?​

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Multiple Choice

$$3+g+2g=-21$$  

• Subtract g from both sides

• Add 21 to both sides

• Combine g and 2g

• Combine 3 and -21

Multiple Choice

$$67=2e+3+5$$  

• Combine 2e and 3

• Combine 3 and 67

• Combine 2e and 67

• Combine 3 and 5

Now we are going to actually SOLVE the equations​

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Multiple Choice

$$5+4x=-19$$  

• x = 4

• x = -4

• x = 6

• x = -6

Multiple Choice

$$20=-2x-8$$  

• x = -14

• x = -8

• x = 14

• x = 8

Multiple Choice

$$\frac{m}{-5}+15=0$$  

• x = -3

• x = 15

• x = 75

• x = -75

Multiple Choice

$$8+16x=-72$$  

• x = 3

• x = -5

• x = 5

• x = -3