35 times, remainder 7
306
It is: 35/9 times 18 = 70
7+5x=(7/5)x multiply by 5 35 + 25x = 7x subtract 25x 35 = -18x divide by 18 x = (-35 / 18) now check 7+5(-35/18)=(7/5)(-35/18) 7-(175/18)=(7/5)(-35/18) (cast out 5 from the 5 and 35) (126/18)-(175/18)=(7/1)(-7/18) (-49/18)=(-49/18) and yes it does.◄
6 times with 18 remaining
35 times, remainder 7
306
643 ÷ 35 = ~18.37 or 18 times with a remainder of 13.
18
It is: 35/9 times 18 = 70
7+5x=(7/5)x multiply by 5 35 + 25x = 7x subtract 25x 35 = -18x divide by 18 x = (-35 / 18) now check 7+5(-35/18)=(7/5)(-35/18) 7-(175/18)=(7/5)(-35/18) (cast out 5 from the 5 and 35) (126/18)-(175/18)=(7/1)(-7/18) (-49/18)=(-49/18) and yes it does.◄
18 times, remainder 30
6 times with 18 remaining
18 x 35 = 630 630 / 30 = 21 So the answer is 21.
18/35
It goes in 18 times.
18+35 = 53