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

Why do people fight over stuff
imported plants and animals in Hawaii have
Cory has 15 die-cast cars in his collection. Each year his collection increases by 20%. Roger has 40 cars in his collection. Each year he collects 1 additional
31/7 as a mixed number
The main two characteristics that describe any igneous rock are _____ and _____. A. texture; gas content B. composition; texture C. cooling rate; composition D.
lani has learned 21 of 84 songs in her piano playbook what percent of the total number of songs in the PlayBook has Lani learned
describe the contributions of the Phoenicians
Dentify the infinitive phrase and its use. I wish to point out your responsibilities as a dedicated student. Infinitive phrase: Use:
What took place at the Hartford Convention? The Federalists demanded constitutional amendments. New England seceded from the United States. The Federalists r
put 1/4 3/6 1/8 in order from least to greatest