Question

8х+3х-х
6y-у
9y+2y-4y
Ответ:

Answer 1

Ответ:

6.

a+4a=5a

7a+3(a+7)=7a+3a+21=10a+21

8(a+b)+3(a-b)=8a+8b+3a-3b=11a+5b

9x-4-x+5(x+y+2)=9x-4-x+5x+5y+10=13x+5y-6

a+2(a+2)=a+2a+4=3a+4

4(a+5)+5(a+6)=4a+20+5a+30=9a+50

x+5y+3(x+y)=x+5y+3x+3y=4x+8y

7x-4x=3x

8x+3x-x=10x

6y-y=5y

9y+2y-4y=7y