" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
{2x= 6y + 18
{4x+5y=10
{2x-6y=18/*(-2)
{4x+5y=10
{-4x+12y= -36
-----------------
5y+12y=10-36
17y= -26/:17
y= -26/17
y= -1 9/17
4x+5y=10
4x+5*(-26/17)=10
4x-130/17=10
4x-7 11/17=10
4x=10+7 11/17
4x=17 11/17/:4
x=300/17 * 1/4
x=300/68
x=4 28/68
x= 4 7/17
{2x-6y=18 /*(-2)
{4x+5y=10
+ {-4x+12y=-36
______________
17y=-26 /:17
y=-26/17
2x-6(-26/17)=18
2x+156/17=18
2x=18-9i3/17
2x=8i14/17 /:2
x=4i7/17
{x=4i7/17
{y=-1i 9/17