vabnqazqwv vabnqazqwv
  • 23-07-2021
  • Mathematics
contestada

What is the solution to this system of linear equations?
2%. + 3y = 3
7x-3y = 24
O (
27)
(3,-21)
O (3-1)
19.0

Respuesta :

devishri1977
devishri1977 devishri1977
  • 23-07-2021

Answer:

(3,-1)

Step-by-step explanation:

2x + 3y = 3  -----------(I)

7x - 3y = 24 ----------(II)

Add equation (I) & (II) and y will be eliminated and we can find the value of 'x'

(I)         2x + 3y = 3

(II)       7x   - 3y = 24   {Add}

         9x           = 27   {Divide both sides by 9}

                    x = 27/9

x = 3

Plugin x = 3 in equation (I)

2*3 + 3y = 3

  6 + 3y = 3

Subtract 6 from both sides

 3y = 3 - 6

 3y = -3

Divide both sides by 3

    y = -3/3

y = -1

   

Answer Link

Otras preguntas

whats the most accurate estimation of 65+77
A pencil measures 14 cm long. How many millimeters long is it?
which of the following represents the most accurate estimation of 38+23
''Life in a city is more rewarding than life outside a city."List two or three arguments in favor of this opinion and two or three arguments opposing this opini
which of the following represents the most accurate estimation of 38+23
whats the most accurate estimation of 65+77
please explain how to solve this  On Monday,it took Helen 3 hours to do  a page of science homework exercises.The next day she did the same number of exercises
whats the most accurate estimation of 65+77
''Life in a city is more rewarding than life outside a city."List two or three arguments in favor of this opinion and two or three arguments opposing this opini
whats the most accurate estimation of 65+77