4(a-1)(-a+7)(a-2)(-a-5)
x+1+x+2+x+3=204
3x+6=204
3x+6-6=204-6
3x=198
x=198/3
x=66
verification:
67+68+69=204
voilà..... :)
Copyright © 2024 ELIBRARY.TIPS - All rights reserved.
Lista de comentários
4(a-1)(-a+7)(a-2)(-a-5)
x+1+x+2+x+3=204
3x+6=204
3x+6-6=204-6
3x=198
x=198/3
x=66
verification:
67+68+69=204
voilà..... :)