Writing & Substituting Equations

If m=12, what does n equal?

3m-10=n

If a=11, what does b equal?

5a=b

If d=5, what does f equal?

 $d^2=f$  

If g=30, what does h equal?

 $\frac{g}{2}=h$  

Determine which value from the set, if any, is a solution.

x={4,8, or 12} 2x=24

• x=4

• x=8

• x=12

• None of these

Determine which value from the set, if any, is a solution to the equation.

y={3, 6, or 9} 3y+2=35

• y=3

• y=6

• y=9

• None of these

Determine which value from the set, if any, is a solution to the equation.

z={5, 10, or 15}

 $z^2=100$  

• z=5

• z=10

• z=15

• None of these

Determine which value from the set, if any, is a solution to the equation.

p={11, 22, 33} p+14=57

• p=11

• p=22

• p=33

• None of these

John has read twice the number of books, b, Bailey has. Which expression below represents the number of books John has read.

• b

• 2b

• b+2b

• 2b-b

Marcus ran 5 miles on Monday and 3 miles on Tuesday. By the end of the week, Marcus had ran 21 miles. Which equation below represents this situation.

• 5+3+m=21

• 21-m=5-3

• 8m=21

• 21-5-3+m