Answer:
[2] x = -5y - 4
// Plug this in for variable x in equation [1]
[1] 2•(-5y-4) - 5y = 22
[1] - 15y = 30
// Solve equation [1] for the variable y
[1] 15y = - 30
[1] y = - 2
// By now we know this much :
x = -5y-4
y = -2
// Use the y value to solve for x
x = -5(-2)-4 = 6
Solution :
{x,y} = {6,-2}
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Terms and Topics
Linear Equations with Two Unknowns
Solving Linear Equations by Substitution
Related Links
Algebra - Linear Systems with Two Variables
Step-by-step explanation:
Answer:
b, since the others have the input and output on the wrong sides
Plug in 500 for h in the equation and you get:
e=3 (500)
e=1500
The club can buy 5 computers with $3472
Step-by-step explanation:
The number of computers which can be bought from the given amount will be calculated by dividing the amount by price of one computer.
Given
Total amount = $3472
Price of one computer =$680
The number of computers will be:

As the number of an item cannot be in decimal it will be rounded off to 5.
The club can buy 5 computers with $3472
Keywords: Price per unit, pricing
Learn more about pricing at:
#LearnwithBrainly
Solution
The question would like us to evaluate the following:

- The solution is given below:

Final Answer
The answer is -3