Question

10 The sum of three numbers is

73. The second number is
twice the first, and the third is 3
more than the second. Write and
solve an equation to determine the
three numbers.

Answer 1

x = 14.

Explanation:

So, we know that the sum of 3 number is 73. The second number is twice the first, and the third is 3 more than the second. We can turn this into an algebra equation.

x + 2x + 2x + 3 = 73.

If we solve, this, we get x = 14.