" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
segunda caja = X-10
tercer caja = X-15
X+X -10+X-15= 275
3X= 275+10+15
X=300÷3
X=100
1°caja=100
2° caja= 100-10= 90
3° caja= 100-15 = 85
2 caja=x-10 =90
3 caja=x-15 =85
x+x-10+x-15=275
3x-25=275
3x=300
x=100