Amandax3
Answered

Welcome to Westonci.ca, your go-to destination for finding answers to all your questions. Join our expert community today! Our platform provides a seamless experience for finding precise answers from a network of experienced professionals. Experience the convenience of finding accurate answers to your questions from knowledgeable experts on our platform.

Solve.

4x + 4y = 20
4x + y = -10

Sagot :

The way I'd do this is by elimination.  Multiply 4x+y=-10 by -14x+4y=20-4x-y=105y=30y=6
As for x multiply 4x+y=-10 by -4
4x+4y=20-16x-4y=4012x=60
x=5
suheyb
The answer is ( first we looking for what is the "x" and what is the "y" )we have same number for x. but both of them is positive so we have to make different sings let's do { 4x+4y=20 ) the next side we multiply by negative sing ( -4x-y=10 ) now subtract ( 4x-4x ) is gone  ( 4y-y ) is 3y ( 20+10 ) is 30. what we have finely ( 3y=30 ) now solve "y" divide each side by 3 ( y=10 ) we get "y" so now we look for "x". we take the orginal question ( 4x+(10)=-10 ). "y" we plugging 10 ( 4x+10=-10 ) now solve "x" ( 4x=-20 )  then divide each side by 4 ( x=-5 ) now we get "x" right so the answer is ( x=-5 , y=10 ) that sad. i hope you understand what i did   
We hope our answers were useful. Return anytime for more information and answers to any other questions you have. Thank you for choosing our platform. We're dedicated to providing the best answers for all your questions. Visit us again. Discover more at Westonci.ca. Return for the latest expert answers and updates on various topics.