Question

. The sum of three consecutive multiples of 7 is 357. Find the smallest multiple.​

Answer 1

numbers are 7x, 7x+7,7x+14

7x+7x+7+7x+14=357

21x+21=357

21(x+1)=357

x+1=357/21=17

x+1=17

x=17-1=16

so 7x=7*16=112

7x+7=112+7=119

7x+14=7x+7+7=119+7=126

the smallest multiple out of these numbers is 7x=112