thenaivecube
thenaivecube thenaivecube
  • 03-06-2018
  • Mathematics
contestada

Solve: 2x-3y=21 and -6x+2y=7 PLEASE HELP

Respuesta :

musicnotesloves
musicnotesloves musicnotesloves
  • 03-06-2018
the first one is : x=3/2y+21/2
the second one is: 
x=1/3y+−7/6
Answer Link
vidalmari6p99qfk
vidalmari6p99qfk vidalmari6p99qfk
  • 03-06-2018

y= 10  

2x-3y=21

2x=21+3y

x= (21/2 +3/2 y)


-6(21/2+3/2y)+2y=7

126/2+18/2y+2y=7


    sorry I need to leave now

      




Answer Link

Otras preguntas

In the electron transport chain, the main purpose of the _______ we breathe is to keep electrons moving along from the first to the last chemical carrier. A. at
________ is the biogeochemical cycle that describes the movement of oxygen within and between it's three main reservoirs. a. Oxygen Cycle b. Carbon Cycle c. Nit
The ____, ratified in 1933, repealed the ban on alcoholic beverages.
The place in an ecosystem where an organism lives is called its _____.
what is the source of the power in this mill
cody and his friends started playing a game at 6:30 p.m. it took them 37 minutes to finish the game at what time did they finish
A sequence is defined by the recursive formula f(n + 1) = 1.5f(n). Which sequence could be generated using the formula
The Indus River flows southwest into the Arabian Sea. a. True b. False
Although variations occur, plays usually follow a general pattern. a. True b. False
The events that lead to genetic drift are _______. a. always natural disasters b. random c. predictable d. related to human activities