" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
<=> 3x+2x-40=0
<=>5x=40
<=>x=40/5
<=> x=8
2. x^2+2x+4x+8=x^2+5x+3x+15
<=>6x+8=8x+15
<=>-2x=7
<=>x=-7/2
3. 4(y^2-6y+9)=4y^2-20y-6y+30
<=>4y^2-24y+36-4y^2+26y-30=0
<=>2y+6=0
<=>y=-6/2
<=>y=-3