Tali1982 Tali1982
  • 01-04-2021
  • Mathematics
contestada

solve the system of equations -8x+7y=6 and 3x-2y=4 by combining the equations

Respuesta :

Yang100
Yang100 Yang100
  • 03-04-2021

Answer:

x=8, y=10. (8, 10).

Step-by-step explanation:

-8x+7y=6

3x-2y=4

--------------

2(-8x+7y)=2(6)

7(3x-2y)=7(4)

-----------------------

-16x+14y=12

21x-14y=28

-------------------

5x=40

x=40/5

x=8

3(8)-2y=4

24-2y=4

2y=24-4

2y=20

y=20/2

y=10

Answer Link

Otras preguntas

why did the united states support the overthrow of an elected guatemalan president
Select the correct statement about verbs. The words in sentences that show the action are verbs. Verbs express action or being in time. Time is known as tense.
the biology class has a lab every 4 days. The earth science class has a lab every 3 days. On which day does both classes have a lab?
how many inches are in 110 yards
In Robert Southey's "The Battle of Blenheim," what do the skulls that turn up in the fields and by the river represent? (
The climax is usually at the greatest point of suspense. True False
Jamal watched his older brother Robert lift weights. The bar alone had a mass of 20 kg. on the bar he had two 11.4 weights, two 4.5 kg weights, and four 450 g
in a group of 48 children there are twice as many boys than girls how many girls are there
explain how keplers law verifies newtons law of gravitation when it applied to orbiting planets
then describe how and when Rome was actually founded