x-2y=4
-x-3y=0
5x+3y=0
-x-2y=7
-------------+
x-2y-x-3y=4-0
-5y=4/:-5
y=-1,25
x-2*1,25=4
x-2,5=4
x=4+2,5
x=6,5
-x-2y=7/*5
-5x-10y=35
---------------+
5x+3y-5x-10y=0+35
-7y=35/: (-7)
y=-5
5x+3*(-5)=0
5x-15=0
5x=0+15
5x=15/:5
x=3
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
x-2y=4
-x-3y=0
-------------+
x-2y-x-3y=4-0
-5y=4/:-5
y=-1,25
x-2*1,25=4
x-2,5=4
x=4+2,5
x=6,5
y=-1,25
5x+3y=0
-x-2y=7/*5
5x+3y=0
-5x-10y=35
---------------+
5x+3y-5x-10y=0+35
-7y=35/: (-7)
y=-5
5x+3*(-5)=0
5x-15=0
5x=0+15
5x=15/:5
x=3
y=-5