Question

5x-108=4x-45can you please do it step-by-step ​

Answer 1

Step-by-step explanation:

The object of this problem is to get both sides (to the left and right of the equal sign) of the equation the same value. THIS IS JUST AN EXAMPLE:

4=4.

First thing is to add the like terms together (same variable and/or same exponent). So we do 5x-4x= 1x. (same variable) When we bring 4x to the left side of the equal sign, we bring the 108 to where the 4x was.

NEW EQUATION: 5x-4x=108-45

1x is the same as x. (Basically, 1 times x is x)

EQUATION: x=108-45

108-45= 63

So, x=63.  63 is the answer

Now to make sure the answer is correct, substitute each x in the equation for 63. If both sides have the same value you are correct.

CHECKING WORK: 5 x 63 - 108= 4 x 63 - 45

                                     315 - 108 = 252- 45

                                          207= 207

IT IS CORRECT!

Hope this helps.  

Answer 2

Answer:

x = 7

Step-by-step explanation:

so first of all you have to get the x on one side

5x - 108 = 4x - 45

5x - 108 + 108 = 5x + 4x = 9x

4x - 45 - 4x = -45 + 108 = 63

9x = 63

then you have to divide each side by 9          

9x / 9 = x

63 / 9 = 7

x = 7