Question

Calcule
a)5x - 8y + 4x +2x-7y+y=

b)9xy- xy+4y-9y+xy=

c)10ab +b+ab-5b+10b=​

Answer 1

Resposta:

a)5x - 8y + 4x +2x-7y+y=

5x+4x+2x-8y-7y+y= 11x-14y

b)9xy- xy+4y-9y+xy=

9xy-xy+xy+4y-9y= 9xy-5y

c)10ab +b+ab-5b+10b=

10ab+ab+b-5b+10b= 11ab+6b