25-04-2018
Mathematics

contestada

Find the solution to the system of equations: 2x+y=12 7x−2y=31

Respuesta :

elliejl1016 elliejl1016

25-04-2018

x=5 and y=2
2x + y + -2x = 12 + -2x
y = -2x + 12
7x - 27 = 31 (we are substituting here for the y)
11x - 24 = 31
11x - 24 + 24 = 31 + 24
11x = 55
x = 5

y=-2x+12
y=(-2)(5)+12
y=2

Answer Link

Otras preguntas

where is the 6ix9ine ?

please help in exchange for kiss :(

Please help I would appreciate it

What are the moral lessons that can be learn from the life of Okomfo Anokye

The gospel quartet singing style of a capella means: O A. singing in the church parking lot. B. singing with an orchestra. C. singing with a brass band. O D. si

The planets orbit the sun because they are attracted by the sun's A heat B Light С gravity. D friction

Why was there a conflict between the USSR and the US? a) The creation of the League of Nations b) The permanent US occupation of Germany c) The USSR wanted to c

help plz will mark brainliest!!!!

A rock is dropped from a sea cliff, and the sound of it striking the ocean is heard 2.9 s later. If the speed of sound is 340 m/s, how high is the cliff?

A strand of mRNA that is 450 nitrogenous bases long will produce a protein containing approximately