Question

Write and equation to find the first three numbers with the following properties. Let x be the first number. The second number is 3 more than the first number. The third number is 4 times the second number. The sum of the third number and the product of the first number is 0. Solve the equation and give the three numbers.

Answer 1

4(x+3)+x=0
4x+12+x=0
5x+12=0
5x=-12
x=-2.4
the first number -2.4
the second number 1.4
the third number 5.6