dioru
dioru dioru
  • 12-03-2021
  • Mathematics
contestada

if i eliminate x from 5x+3y=9
2x-4=40, what would the new two equations be?

Respuesta :

gufeliz1965
gufeliz1965 gufeliz1965
  • 12-03-2021

You cannot eliminate x and end up with two different equations.

5x+3y=9.. B

2x-4=40...A

Solve A for x.

2x - 4 = 40

2x = 40 + 4

2x = 44

x = 44/2

x = 22

The only thing I can think of doing is to plug 22 into B.

5(22) + 2y = 9

110 + 2y = 9...This leads to an answer for y.

No two NEW EQUATIONS is possible.

2y = 9 - 110

2y = -101

y = -101/2

Check your question again.

Answer Link

Otras preguntas

Two samples of water are mixed together. The first sample has a mass of 0.50 kg and is at 0°C. The second sample has a mass of 1.5 kg and is at 100°C. What is t
concept synthesis exploring the hero essay
Suppose an investment generates an annual sales of $5,700.000, with annual costs of $4.320.000. If the tax to be paid on annual sales is $414,000, what is a tax
jackie want to buy a digital camera that sells for $250. she has $120 saved. she finds the camera on sale for $200.what percent of the sale price does she have
Can somebody please help me because im going to freak out
Can you help me out pls
If the solution process is exothermic, then an increase in temperature usually results in: an increase in solubility a decrease in solubility no change in the s
Please help me!!! Select all the names of this polygon.
When writing a book review , what should you not include in the summary
pls help me with this ​