Solve Equations

If x=5,find the value of 7x-1

• 34

• 36

• 35

If y=4,find the value of 3y+5

• 27

• 12

• 17

If y=7,find the value of 2(y+4)

• 11

• 22

• 20

The area of a rectangular deck is 125 square feet. The width of the deck is 25 feet. Write an equation and solve to find the length. {Hint A = L x W}

• 25x=125,

  x = 5 feet

• x+22=125,

  x = 20 feet

• x-25=125

  x=150 feet

• 25x=125

  x=3,125 feet

Which equation matches the table?

• y = x + 5

• y = 5x

• y = x - 5

• x = y - 5

What is the algebraic equation for this table?

• y = x + 3

• y = 3x

• y = x ÷ 3

• y = x - 3

What is the algebraic equation for this table?

• y = 480x

• x = y/480

• x + 480 = y

• 480 - x = y

Nancy can type 50 words per minute. Look at the table below to write an equation that matches the data.

• m=50 + w

• w= 50m

• w= 50 + m

• m= 50 - w

Look at the table below. Write an equation to match the pattern between m, minutes and bubbles blown, b.

• b = 12(m)

• b= m +12

• b = m ÷ 12

• none of these

Write the equation of the line.

• y = x + 1

• y= x - 1

• y= -x + 1

• y= -x - 1