angelina32228 angelina32228
  • 17-12-2021
  • Mathematics
contestada

[tex]3x - 4y = 6 and 5x + 8y = -1[/tex]

Respuesta :

jimrgrant1 jimrgrant1
  • 17-12-2021

Answer:

x = 1 , y = - [tex]\frac{3}{4}[/tex]

Step-by-step explanation:

3x - 4y = 6 → (1)

5x + 8y = - 1 → (2)

Multiplying (1) by 2 and adding to (2) will eliminate the y- term

6x - 8y = 12 → (3)

Add (2) and (3) term by term to eliminate y

11x = 11 ( divide both sides by 11 )

x = 1

Substitute x = 1 into either of the 2 equations and solve for y

Substituting into (2)

5(1) + 8y = - 1

5 + 8y = - 1 ( subtract 5 from both sides )

8y = - 6 ( divide both sides by 8 )

y = - [tex]\frac{6}{8}[/tex] = - [tex]\frac{3}{4}[/tex]

Answer Link

Otras preguntas

Yet again I still get confused
Find the common difference of the arithmetic sequence.2, 1 8/9, 1 7/9,1 2/3, . . . a.9b.-1/9c.-9d.1/9
in in order to picture the action of a drama in your mind while reading it is important to
Germany's use of the u-boat resulted in many deaths at sea. however, the sinking of which ship resulted in the death of many americans and other passengers?
What is the term for vivid writing that appeals to the senses? A) evidence B) imagery C) tone D) voice
What measures the distance between two consecutive crests of a wave? A. a crest B. a trough C. the amplitude D. the wavelength
What system of your body would be active if you were surprised?
which graph has a slope of 4/5
Si tú pagas dinero para algo, pero no lo compras, lo.. A. alquilas. B. comes. C. robas.
Identify the equation that means “five times x is sixty”.