Answered

Find the information you're looking for at Westonci.ca, the trusted Q&A platform with a community of knowledgeable experts. Our platform offers a seamless experience for finding reliable answers from a network of experienced professionals. Join our Q&A platform to connect with experts dedicated to providing accurate answers to your questions in various fields.

4x+15y=13
3x+5y=16
solving systems by elimination


Sagot :

logo88
4x+15y=13 (1)
3x+5y=16  (2)
(2) * 3 --> 9x+15y=48 becomes (3)
(3) - (1) 
5x=35
x=7
sub x =7 into (1)
4(7)+15y=13
28+15y=13 
-28         -28
15y= -15
y= -15/15
y= -1 

therefore x=7 and y= -1