minerva2005hernandez minerva2005hernandez

07-04-2020
Mathematics

contestada

Solve the following system of equations by elimination. Express
the solution as an ordered pair (x, y).
-x- 3y = 20
4x + 3y = 1

Respuesta :

juls1816 juls1816

07-04-2020

Add the two equations together with the same variables

-x+4x=3x
-3y+3y=0
20+1=21

You now get

3x=21

Divide and find x =7

Plug in x to the equation to find y
Y=-9

(7,-9)

Answer Link

Otras preguntas

Determine whether the given point left parenthesis negative startfraction 1 over startroot 17 endroot endfraction comma startfraction 3 over startroot 17 endroo

What would 'X' equal?

Consider the following situation: Mark is applying for a cashier and sales job at Landscaping World, a large retail store near his house. He is writing a job ap

What is the slope of the line that passes through the points (-2,-5) and (18, -5)? Write your answer in simplest form.

An experimenter is randomly sampling 4 objects in order from among 41 objects. What is the total number of samples in the sample space?

Gia got some books from Library yesterday she got five books today Gia returned three books Gia has six books how many books did gia have to begin

Stuck on this question... solve using the angle bisector theorem and use X to find BC (30 pts)

Based on the information in the letter, what can you infer Bismarck’s primary motivation for unification is? a higher standard of living for its people more lan

A scuba diver at a depth of -12 ft dives down to a coral reef that is 3.5 times the divers original depth. What is the divers new depth.

This was the famous ship that transported the English Separatists, better known as the Pilgrims, from England to Plymouth, Massachusetts in 1620.