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

It’s from khan academy B=10 H=8 Find the area of the parallelogram Use the slider to help you remember the formula

A line passes through (-4, 7) and has a slope of 3/2 Write an equation in slope intercept form for this line

What is the predominant land use in north korea, south korea and japan

Solutions of monosodium phosphate and disodium phosphate are combined in equal volume to produce a buffer. Identify the combination that will produce the buffer

Where did leonardo divinci say this the greatest deception men suffer is from their own opinions

A and B are two companies. The table shows some information about the sales of each company and the number of workers for each company in 2004 and in 2014 Work

Why did many different native american cultures develop?

Write an expression for the cost per person if five friends share the cost of a dinner equally.

What are the organelle differences in plant and animal cells

Please Help! In a proof to show two triangles are congruent if a given is PR ⟂ CK, which of the following statements most likely will be used within the proof?