Question

помогите решить номер 825 пож . срочно

Answer 1

3(а+2b)-a=3a+6b-a=2a+6b=a+3b=1.1
2.4(3x+5y)-4y=7.2x+12y-4y=7.2x+8y=0.9x+y=2
8(0.5a+3b)+8a=4a+24b+8a=12a+24b=a+2b=2.5
3(0.6m+5n)-3n=1.8m+15n-3n=1.8m+12n=0.3m+2n=4

Answer 2

секунду

Answer 3

3(а+2b)-a=3a+6b-a=2a+6b=2(a+3b)=2*1.1=2.2

Answer 4

2.4(3x+5y)-4y=7.2x+12y-4y=7.2x+8y=8(0.9x+y)=8*2=16

Answer 5

8(0.5a+3b)+8a=4a+24b+8a=12a+24b=12(a+2b)=12*2.5=30

Answer 6

3(0.6m+5n)-3n=1.8m+15n-3n=1.8m+12n=6(0.3m+2n)=6*4=24