Answer:
see explanation
Explanation:
the first number is x
the second number is 2x + 3
the third number is x + 2
sum the 3 numbers and equate to 45
the equation to solve for x is then
x + 2x + 3 + x + 2 = 45 ( simplify left side )
4x + 5 = 45 ( subtract 5 from both sides )
4x = 40 ( divide both sides by 4 )
x = 10
the first number is 10