Question

Find the equation for seventeen added to twice of x is

equal to 31

Answer 1

Answer:

You want to start by assigning variable names and then writing equations for each fact they give you.

So let x = the first number and let y be the "other" number.

So the first statement means that x = 2y + 7 -- 7 more than twice the other number.

And the second statement says that x + y = 31.

So that gives you two equations with two unknowns:

x = 2y + 7

x + y = 31

So you just have to solve these.

Since the first equation gives you an easy expression for x, just substitute that into the second equation:

x + y = 31

(2y + 7) + y = 31

3y + 7 = 31

3y = 24

y = 8

Since the sum of the two numbers is 31, x must be 23.

Answer 2

Answer:

2x+17=31

Step-by-step explanation:

twice of x is=2x

sum of seventeen and x is =2x+17 which is equal to 31

so,the required equation is given by,

2x+17=31 which is the required answer.