Asked by nellyna
I am getting difficulties by doin this homework.plzzzz can u hel pme;Solve this simultaneous equation;1/3(x+2)-1/4(y-1)=1,5X=4Y(B)SOLVE TO 2 DECIMAL PLACES'x-15/x=12.
The second number am not sure of my calcalations;The point (x,y)is transformed by the matrix (5 -1) TO(19 9) (2 1)
FIND THE VALUE OF X AND Y. n I GOT 4 N 1 AS THE ANSWER...
The second number am not sure of my calcalations;The point (x,y)is transformed by the matrix (5 -1) TO(19 9) (2 1)
FIND THE VALUE OF X AND Y. n I GOT 4 N 1 AS THE ANSWER...
Answers
Answered by
Reiny
multiply your first equation by 12 to get
4(x+2)-3(y-1)=12
4x-3y=1 call this equation #1
take your orignal second equation, multiply it by 4 and take all terms to the left side
20x-16y=0 call this equation #2
#1 times 5 ---> 20x-15y=5
#2 ----------> 20x-16y=0 subtract them to get
y=5
back in #2 ----> 20x-75=5
20x=80
x=4
I don't understand your second question
4(x+2)-3(y-1)=12
4x-3y=1 call this equation #1
take your orignal second equation, multiply it by 4 and take all terms to the left side
20x-16y=0 call this equation #2
#1 times 5 ---> 20x-15y=5
#2 ----------> 20x-16y=0 subtract them to get
y=5
back in #2 ----> 20x-75=5
20x=80
x=4
I don't understand your second question
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.