4n-40=2(2n-20)

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Solution for 4n-40=2(2n-20) equation:


Simplifying
4n + -40 = 2(2n + -20)

Reorder the terms:
-40 + 4n = 2(2n + -20)

Reorder the terms:
-40 + 4n = 2(-20 + 2n)
-40 + 4n = (-20 * 2 + 2n * 2)
-40 + 4n = (-40 + 4n)

Add '40' to each side of the equation.
-40 + 40 + 4n = -40 + 40 + 4n

Combine like terms: -40 + 40 = 0
0 + 4n = -40 + 40 + 4n
4n = -40 + 40 + 4n

Combine like terms: -40 + 40 = 0
4n = 0 + 4n
4n = 4n

Add '-4n' to each side of the equation.
4n + -4n = 4n + -4n

Combine like terms: 4n + -4n = 0
0 = 4n + -4n

Combine like terms: 4n + -4n = 0
0 = 0

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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