Big Ideas Algebra

The sum of a number b and 19 is 14.

• b+19=14
• b=19+14
• b+14=19

The product of 14 and a number v is 44.

• 14+v=44
• 44v=14
• 14v=44

The sixth grade has $1579 in its class trip fund. The total amount needed for the trip is $7300. Write an equation you can use to find the amount that needs to be raised for the trip.

• 1579a=7300

• a+1579=7300

• a=7300 + 1579

Solve the equation. Check your solution. 
a + 23 = 33

• 11
• 56
• 10

Solve the equation. Check your solution. 
x - 3 = 14

• 11
• 17
• 25

Solve the equation. Check your solution. 
54 = 9a

• 540
• 486
• 6

Solve the equation. Check your solution. 
 
c / 10 = 15

• 135
• 150
• 3/2

You get in an elevator and go down 7 floors.You exit on the 24th floor. Write and solve an equation to find what floor you got on the elevator.

• f-7=24 ; You got on the elevator on the 31st floor.
• 24-7=f ; You got on the elevator on the 17th floor.
• f + 7 = 24 ; You got on the elevator on the 1st floor.

Tell whether the ordered pair is a solution of the equation.  y=x-12 ;  (14, 2)

• yes
• no

Tell whether the ordered pair is a solution of the equation.  y = x/10 ;  (7,70)

• yes
• no