Solve the following system using substitution. Be sure to check your solution. Show every step.

-2x + 5y = 19

3x - 4 = y

Explain the difference between x-2 and 2-x?

Which one is faster 2.52 or 2.12 in knots and by how much in mintues

Justin did push-ups every weekday this week. He did 888 push-ups on Monday, 14 push-ups on Tuesday, 18 push-ups on Wednesday, 6 push-ups on Thursday, and 8 push-ups on Friday. Find the mean number of push-ups.

The function p (d) = 5⋅ 4 d-1 represents the number of people who receive a certain e-mail on day d of an e-mail experiment. What does the value 5 represent in this situation? There are 5 people running the experiment.

Suppose that n is an integer such that n/3 is 12 greater than n/2. Which of the following is the value of n?

The sum of two numbers is - 1. when twice the first number in four times the second number are added, it equals - 10. what are the two numbers?

You have 48 grams of a radioactive kind of xenon. If it's half life is 9 hours, how much will be left after 18 hours?

7 lb 12 oz Or 124 oz greater or equal

For the particular problem raised in the introduction, assume that the total bill is $44. to answer the question "how should the bill be split?" we will create a linear equation.

An item is regularly priced $75. Ali bought it at a discount of 60% off the regular price. How much did Ali pay?