ssliapis
ssliapis ssliapis
  • 23-04-2021
  • Mathematics
contestada

5x + 2y = 18
-5x + 5y = 45

Respuesta :

Chloegayleen16 Chloegayleen16
  • 23-04-2021

Answer:

the answer for this problem is (x,y)=(0,9)

Answer Link
KurdishPotato
KurdishPotato KurdishPotato
  • 23-04-2021

Answer:

y = 9

x = 0

Step-by-step explanation:

5x + 2y = 18

-5x + 5y = 45 add two equations up

5x + 2y -5x + 5y = 18 + 45 add like terms (note that, 5x will eliminate -5x)

7y = 63 divide both sides by 7

y = 9 to find the value of x we can use this information

5x + 2y = 18 replace y with 9

5x + 2*9 = 18

5x + 18 = 18 subtract 18 from both sides

5x = 0 and x = 0

Answer Link

Otras preguntas

Help please !!!!!!!!!!!
prove cos a = 5/13 pls solve it and no link pls..........​
Cómo hallar el dominio de una función identidad?
PLEASE HELP IT’S DUE TMR
What are the 2 main groups into which cells are classified? What is the major difference between them?
__________ is the systematic self-observation and analysis of one’s conscious experience.
calculate the volume of a spare with radius 7cm​
Along the road from Concord to (11)_____________________________, colonists fired at the British, wounding 200 and killing 73. American More Military Action On
Which of the following formulas describes the change in momentum of an object? A. change in momentum = force x time over which force is applied B. change in mom
Who was Hardeep Singh? Why Hardeep Singh approached his friend Gurpreet Singh