" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
-3x+3y=-15 x1 = -3x+3y=-15 +
-3y=6
y=-2
x-2y=7
x-2(-2)=7
x+4=7
x=3
hp {3,-2}