Solve: 7(2r – 5) = 4r + 5(2r + 3)
a. -7
b. -8
c. no solution
d. infinite solutions

no solutions

Step-by-step explanation:

7(2r – 5) = 4r + 5(2r + 3)

Distribute

14r -35 = 4r+10r+15

Combine like ters

14r-35 = 14r+15

Subtract 14r from each side

14r-35 -14r = 14r+15-14r

-35 =15

This is not a true statement so it has no solutions

C) No Solution.

Step-by-step explanation:

7(2r-5)=4r+5(2r+3)

14r-35=4r+10r+15

14r-35=14r+15

14r-14r-35=15

-35=15

no solution.

(n^3 - n)

= n(n-1)(n+1)

since it is divisible by 3 and 2 ,because it is a multiple 3 consecutive number

if, n-1 is odd then n+1 is also odd, then it is a multiple of 9

but if, n-1 is even then n+1 is also even, then it is a multiple of 4

so, largest multiple = max(9*2, 4*3) = max(18, 12) = 18

because 1.2 isnt half of 6 duh