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

help please!!! can you show me how to do this??
Use 3.14 for .Jenna is planting four circular gardens. She is planting one garden each for tomatoes, carrots, cabbage, and strawberries. Each garden will have a
What is the reciprocal of 7/g
What is the name for Muhammad’s migration or flight?
A carbon-carbon triple bond is found in a molecule of (1) butane (3) butene (2) butanone (4) butyne
Which statement accurately describes events in the Revolutionary War? A. The Battle of Yorktown was a British victory that gave them control of the southern
What is the molarity of 1.5 liters of an aqueous solution that contains 52 grams of lithium fluoride, LiF, (gram-formula mass =26 grams/mole)? (1) 1.3 M (3) 3.0
Which statement describes where oxidation and reduction half-reactions occur in an operating electrochemical cell?(1) Oxidation and reduction both occur at the
im what direction does heat flow or transfer?
Which of the following is NOT true concerning the Green Revolution? (A) It has been highly ineffective in increasing agricultural yields. (B) It has reinforced