lindsayeve22 lindsayeve22

15-10-2021
Mathematics

contestada

Solve the simultaneous equations
=
3x + 2y = 30
3x - y = 21

Solve the simultaneous equations 3x 2y 30 3x y 21 class=

Respuesta :

Ahisha0o0 Ahisha0o0

18-10-2021

Step-by-step explanation:

3x+2y-(3x-y)=30-21

3x+2y-3x+y=9

3y=9

y=3

3x-y=21

3x-3=21

3x=24

x=8

Answer Link

Otras preguntas

Which theory explains cells and living organisms? a. science theory b. organism theory c. cell theory d. world theory

Which leadership style is most useful when time is abundant, quality output is essential, and enthusiasm and motivation from the employees needs to be generated

please help! Should the harvesting of krill in the Antarctic region continue to be restricted, or should fisheries all over the world be allowed to harvest kril

Which of the following would most likely be the setting for revelry? A. a joyful celebration of a victory by the hometown football team B. a physics lecture at

what kind of sediment motion in a stream can create finer sediment clasts?

who went to the pan-african conference of 1900

Which of the following statements about RNA polymerase in transcription is correct? RNA polymerase is an enzyme that synthesizes an mRNA strand. RNA polymerase

Which sentence is punctuated correctly? She is a beautiful, creative, humble woman. She, is a beautiful, creative, humble woman She, is a beautiful creative hum

Which sentence does not contain any errors in comma usage? A. They have heard crickets in the garage in the basement and in the backyard. B. They have heard cri

Suppose that there are two types of tickets to a show: advance and same-day. The combined cost of one advance ticket and one same-day ticket is $35 . For one