Lance And Rocky Purchased Rollerblades For A Total Of 107 Dollars. Lance…

lance and rocky purchased rollerblades for a total of 107 dollars. lance paid 17 dollars more for his rollerblades than rocky did. what did rocky pay?​

Answer:

45 dollars

Step-by-step explanation:

The answer can be easily derived using basic algebraic method:

Consider the following:

Assign X as the amount Rocky paid:

X = amount Rocky paid

Assign X + 17 as the amount Lance paid (since he paid 17 dollars more):

X+17 = amount Lance paid

The total for their payments (X and X + 17) is 107:

X + X + 17 = 107

You add the 2 “X”‘s together, giving you 2X + 17 on the left side of the equation:

2X + 17 = 107

You subtract 17 from both sides of the equation:

2X = 107 – 17

Giving you the resulting equiation:

2X = 90

Divide both sides of the equation by 2:

2X/2 = 90/2

To arrive at the answer to the problem:

X = 45

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