Question

Write an equation for the following statement: Three times the sum of one and a number is equal to twice the number plus 9.please help this is so hard!

Answer 1

3(1 + x) = 2x + 9

Step-by-step explanation

We want to write an equation for the statement given.

To do this, we will take the statement phrase byphrased and then write the equation out.

So, we have that:

Three times the sum of one and a number

Let that number be x, then:

3 * (1 + x)

= 3(1 + x)

That is equal to twice the number plus 9:

Twice the number => 2 * x = 2x

That plus 9 is:

2x + 9

Therefore, the entire sentence, Three times the sum of one and a number is equal to twice the number plus 9 is:

3(1 + x) = 2x + 9