Answer:
....x and y the numbers x is the largest
The sum of two numbers is 35 x+y=35
The sum of 3 times the largest and 6 times the smallest is 132
3x+6y=132
by substitution:
y =35-x
3x+6(35-x)=132
3x+210-6x=132
-3x=132-210
3x=78
x=26
we calculate y:
x+y=35
26+y=35
y =35-26=9
the numbers are 26 and 9