Need to Find X

Question

y = (x * .4175) + x

where y = 874.90

Answer 1

Hi Jessica,

 

Here you go ~

 

y = (x * .4175) + x

 

Substituting y and rewriting -

 

874.90 = .4175x + x

 

874.90 = .4175x + 1x

 

874.90 = 1.4175x

 

Now, let's rewrite the equation again and solve for x -

 

x = 874.90/1.4175

 

x = 617.21

 

I hope this helps!

 

Rashonda J.

Answer 2

Rewrite the equation as y = x*(0.4175+1)

y = 1.4175*x

x = y/1.4175

x = 874.9/1.4175 = 617.2134

Answer 3

y = [x*(0.4175)] = x

 

y = 874.90 = x*(1 + 0.4175) = 1.4175*x

 

∴ x = 874.9/1.4175 = 617.2

Answer 4

Hi Jessica,

 

You must 1st substitute the value of y into the equation.

 

874.90 = (x*.4175) + x

 

874.90 = .4175x + x

 

874.90 = 1.4175x

 

Now divide each side of the equation by 1.4175.

 

874.90/1.4175 = 1.4175x/1.4175

 

874.90/1.4175 = x

 

x = 617.213404

Answer 5

Hi Jessica,

 

For this algebra equation, you'll want to use substitution. Take the value of y (874.90) and plug it into your equation.

 

874.90 = (x * 0.4175) + x

 

Now let's combine the terms on the right side of the equation.

 

874.90 = 1.4175x                            (because 1x + 0.4175x = 1.4175x)

 

Next, divide both sides by 1.4175

 

874.90/1.4175 = x       

 

So, x is approximately 617.21

 

(Note, it's always a good idea to check your answer. To do that, plug our answer for x back into our original equation and see if y turns out to be 874.90.)

Answer 6

D'oh!, of course zeroth, make sure you copy down the problem right :-)

 

 

First, Combine like terms:

 

y = (x * .4175) + x = 1.4175 * x

 

y = 1.4175 * x

 

Second, solve for x (get x by itself):

 

Multiply both sides by (1/1.4175)

 

(1/1.4175) * y = (1/1.4175) * 1.4175 * x

 

y / 1.4175 = (1) * x

 

x = y / 1.4175

 

Finally, substitute in your value for y:

 

x = 874.90/1.4175 = 617.2134ish

(or 8749000 / 14175 = 349960 / 567 if that's how you roll)