mathstudent0 mathstudent0

02-04-2017
Mathematics

contestada

5x + 2y = 8
x + y = 4
If you want to solve the system of equations by addition, which of the following could you do?

Respuesta :

Shailza Shailza

02-04-2017

Multiply the equation x+y =4 by -5
The resultant would be-
-5x -5y = -20
Adding this with 5x +2y =8
Then, the resulting would be,
-3y = -12
∴ y=4
and x=4-4 =0

Answer Link

sassyqueensavage sassyqueensavage

16-12-2020

Answer:

ita a

Step-by-step explanation:

Answer Link

Otras preguntas

how is mass transit in cities a possible solution tk urban air pollution?

find an equivalent expression without parentheses -(50x-15y+15)=

Historians of china have traditionally dated the beginning of Chinese civilization to the founding of the what??

Prove that (x^5)-(x^2)+2x +3=0 has at least one real root. Prove that x=cosx has at least one solution.

How is it possible for Mercury to have frozen ice ?

find an equivalent expression without parentheses -(50x-15y+15)=

How is it possible for Mercury to have frozen ice ?

Which equation has the same y-intercept as y=4x-3?a. y-3=x b. y=8x+3 c. 3-y=4x d. y=-3+8xWhich of the following is the equation of the line

(10y^3+20y^2+55y)/5y

How were life forms affected by the rise in atmospheric oxygen levels that began 2.2 billion years ago?