How do you solve and check your solution given #n-4.72=7.52#?

1 Answer
smendyka
May 2, 2017

See the solution and validation process below:

Explanation:

First, add #color(red)(4.72)# to each side of the equation to solve for #n#:

#n - 4.72 + color(red)(4.72) = 7.52 + color(red)(4.72)#

#n - 0 = 12.24#

#n = 12.24#

To check the solution substitute #color(red)(12.24)# for #color(red)(n)# in the original equation, calculate the left side of the equation and ensure it equals #7.52#:

#color(red)(n) - 4.72 = 7.52# becomes:

#color(red)(12.24) - 4.72 = 7.52#

#7.52 = 7.52#

Because both sides of the equation are equal the solution checks out and is validated.

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