CAN SOMEONE PLEASE HELP ME

R=51

Step-by-step explanation:

6x-9+7x=121

add like terms:6x+7x=13x

13x-9=121

to cancel out (-9) and to isolate x, add on both sides

13x=130

divide into both sides

x=10

substitute 10 for x

6(10)-9

R=51

(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

597

step-by-step explanation: