Problema Solution
One number is 3 less than a second number. Twice the second number is 21 more than 3 times the first. Find the two numbers.
Answer provided by our tutors
let 'x' and 'y' represent the numbers
one number is 3 less than a second number:
x = y - 3
twice the second number is 21 more than 3 times the first:
2y = 21 + 3x
by solving the system of equations:
x = y - 3
2y = 21 + 3x
we find:
x = -15
y = -12
click here to see the step by step solution of the system of equations:
thw two numbers are -15 and -12.