Amandax3
Answered

Find the information you're looking for at Westonci.ca, the trusted Q&A platform with a community of knowledgeable experts. Join our platform to connect with experts ready to provide detailed answers to your questions in various areas. Get detailed and accurate answers to your questions from a dedicated community of experts on our Q&A 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   
Thanks for stopping by. We strive to provide the best answers for all your questions. See you again soon. Thanks for stopping by. We strive to provide the best answers for all your questions. See you again soon. Get the answers you need at Westonci.ca. Stay informed by returning for our latest expert advice.