One Step Equations Rational Numbers and Word Problems

Sarah drove her car 800 km to see her friend. The return trip was 2 hrs. faster at a speed that was 10 kph more. Which equation will solve her return speed if x represents her speed on her first trip?

Javier has saved $55 toward the purchase of an IPOD. The IPOD costs $145. Which equation represents the amount Javier needs to save to by the IPOD?

• 55 + x = 145

• 145x = 55

• 55 - x = 145

• 145 (55) = x

Darshany bought three candy bars for a total of $18.00. How much did each candy bar cost? Write an equation to solve this problem. Use c as your variable.

• 18c=6

• c + 6= 18

• c +18 = 6

• 3c=18

Select the equation that best represents the situation:

Josiah scored 37 points. This was 5 points more than Alex scored.

• 37 + 5 = k

• k - 5 = 37

• k + 5 = 37

• 5k = 37

What is the solution of the equation? 
x/-5 = -6

• -30

• -11

• 11

• 30

Solve the equation:
x - 5.5 = 10.5

• x = 16

• x = -15

• x = 5

• x = -5

What is the solution of the equation? 
-39.75 = 7.5m

• 298.125

• -5.3

• -32.25

• -298.125

Solve the equation:
-2.6 + x = -4.6

• x = 2

• x = -2

• x = 7.2

• x = -7.2

 d - 3/7 = 5/7

• 8/7

• 6/7

• 4/7

• 3/7

4/9 + b = - 1/2

• 17/18

• -17/18

• 3/8

• 1/8