25ldecke
25ldecke 25ldecke
  • 02-02-2021
  • Mathematics
contestada

Solve each system of linear equations by adding or subtracting.
4x - 5y = 7
3x + 5y = -14

Respuesta :

beautifulmind2468
beautifulmind2468 beautifulmind2468
  • 02-02-2021

Answer:

(x, y) = (-1, -11/5)

Step-by-step explanation:

Add together the two equations. We get:

(4x - 5y) + (3x + 5y) = 7 + (-14).

Simplifing we get:

7x = -7

x = -1.

So, y = -11/5

Answer Link
liyahsmith7126396
liyahsmith7126396 liyahsmith7126396
  • 02-02-2021
I think the answer is around -56
Answer Link

Otras preguntas

Planet - Solar System - Galaxy - Local Group. What comes next? Universe Supercluster Galactic group
round 5.332 to the nearest tenth
Anabel's horse runs 24 miles per hour. Jackie's horse runs 28 miles per hour. Both horses stand at the starting line of a straight 2-mile track, and Jackie's ho
PLEASE HELP!! QUICK MATH QUESTION!!! What is the slope of the line represented by the table below? x y -1 0 1 8 2 12 4 20 8
Unpaid balance method: previous balance: $1280 payment: $200 new purchases: $52 and $48 periodic rate: 1.6% what is the new balance?
I need help with a problem
Find the measure of angle JCA if J is the incenter of the triangle ABC
how do you solve this problem? 47 Fahrenheit =
what is the answer for x2-3x=10??
Mr. Murphy has an old coin that has 10 sides if it is shaped is a polygon how many angles does The old coin have