{2( x + y ) -3 ( x - 2y ) = -7x - 2
{5 ( x + 1 ) - 2 ( 3 - y )= -4( x+ y )
{2x+2y-3x+6y=-7x-2
{5x+5-6+2y=-4x-4y
{2x+2y-3x+6y+7x=-2
{5x+2y+4x+4y=-5+6
{6x+8y=-2 /*3
{9x+6y=1 /*(-2)
{18x+24y=-6
{-18x-12y=-2
_ _ _ _ _ _ _ _
12y=-8/:12
y=-2/3
9x+6y=1
9x+6*(-2/3)=1
9x-4=1
9x=5/:9
x=5/9
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
{2( x + y ) -3 ( x - 2y ) = -7x - 2
{5 ( x + 1 ) - 2 ( 3 - y )= -4( x+ y )
{2x+2y-3x+6y=-7x-2
{5x+5-6+2y=-4x-4y
{2x+2y-3x+6y+7x=-2
{5x+2y+4x+4y=-5+6
{6x+8y=-2 /*3
{9x+6y=1 /*(-2)
{18x+24y=-6
{-18x-12y=-2
_ _ _ _ _ _ _ _
12y=-8/:12
y=-2/3
9x+6y=1
9x+6*(-2/3)=1
9x-4=1
9x=5/:9
x=5/9
x=5/9
y=-2/3