GeekyElement GeekyElement

03-12-2017
Mathematics

contestada

Solve the system of linear equations by substitution. Check your solution.

4x + 2y = 8
6x - 4y = 5

Respuesta :

lesliekolleroxrkcf lesliekolleroxrkcf

03-12-2017

8x+4y=16
6x-4y=5
_________
14x. =21
x = 3/2
4*(3/2)+2y=8
6+2y=8
2y=2
y=1

4*(3/2)+2*1=8 check
6(3/2)-4*1=5 check

Answer Link

Otras preguntas

Convert 14mm to its equivalent in m using dimensional analysis

what are three physical properties of aluminum foil

There were 149 angelfish and goldfish in an aquarium. There were twice as many guppies as angelfish. After selling 35 goldfish there are half as many goldfish

Convert 14mm to its equivalent in m using dimensional analysis

What was the original goal of the Framers when they met at Independence Hall? How did that goal change?

Does the equator cross the northern or southern part of South America? South America is located mostly in which two hemispheres?

The length of Marshall's poster is 2 times its width. If the perimeter is 72 inches, what is the area of the poster?

How and where has oil, road development, mining, dams and agriculture contributed to local economic, political, and land use issues?

On a TI-84, how do you stop it from giving you simply a number for an answer when you put in a polynomial divided by another polynomial?

A car travels at 65 miles per hour. Going through construction, it travels at 3/5 this speed. Write this fraction as a decimal and find the speed