solve for x and t by ellemination 4x -3y=1,5x-7y= -2
Answers
Answered by
2
Multiply 5 with the first equation and 4 with the second equation
Attachments:
Answered by
1
Answer:
4x-7y=8
3x-8y=5
(-3)4x-7y=8
-12x+21y=-24
===============
(4)3x-8y=5
12x-32y=20
=================
-12x+21y=-24
+12x-32y=20
-------------
-11y=-4
y=4/11
============================
Now plug that in as your y;
4x-7(4/11)=8
4x-28/11=8
4x=8+28/11
4x=88/11+28/11
4x=116/11
x=116/44=29/11
====================
Check;
4(29/11)-7(4/11)=8
116/11-28/11=8
88/11=8
8=8
:)
May be it's helpful for you
Attachments:
Similar questions
Computer Science,
6 months ago
English,
6 months ago
Math,
6 months ago
Math,
1 year ago
Math,
1 year ago
Political Science,
1 year ago