How do you solve #d - 65.24 = 347.81#?

3 Answers
Jun 26, 2016

Answer:

#d=413.05#

Explanation:

We have #d-65.24=347.81#

Now adding #65.24# on both sides, we get

#d-65.24+65.24=347.81+65.24#

#d-cancel(65.24+65.24)=347.81+65.24#

or #d=413.05#

Jun 26, 2016

Answer:

The solution is #d = 413.05#, steps are in explanation.

Explanation:

#d - 65.24 = 347.81# This is our given equation

We need to find a way to get #d#, the variable, by itself, so that it can equal a solid answer. To do that, we need to isolate the variable.

#d = 347.81 + 65.24# *We isolated #d# by using the inverse of subtraction, addition, and added #65.24# to both sides.

Now #d# is isolated, and we have all our numbers on one side of the equal sign. Use a calculator or manually compute #347.81 + 65.24#.

#d = 413.05#

And yo have your answer!

Jun 26, 2016

Answer:

#d = 413.05#

Explanation:

Treat an equation as a balance.
What is on one side is exactly equal to what is on the other side, so the balance will stay level.

You can do anything you like to an equation - ADD, SUBTRACT, MULTIPLY,DIVIDE, etc as long as...

YOU MUST DO THE SAME ON BOTH SIDES.

In #d - 65.24 = 347.81#, we would like to have #d# = a number.

To get rid of -65.24, add on 65.24.
(-65.24 +65.24 = 0)
But we must add 65.24 to BOTH sides.

#d - 65.24 color(red)(+65.24)= 347.81color(red)(+65.24)#

#d = 413.05#

By doing the opposite on both sides, this has had the effect of 'moving' the 65.24 from the left to the right side.