4n-1=40+45

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Solution for 4n-1=40+45 equation:


Simplifying
4n + -1 = 40 + 45

Reorder the terms:
-1 + 4n = 40 + 45

Combine like terms: 40 + 45 = 85
-1 + 4n = 85

Solving
-1 + 4n = 85

Solving for variable 'n'.

Move all terms containing n to the left, all other terms to the right.

Add '1' to each side of the equation.
-1 + 1 + 4n = 85 + 1

Combine like terms: -1 + 1 = 0
0 + 4n = 85 + 1
4n = 85 + 1

Combine like terms: 85 + 1 = 86
4n = 86

Divide each side by '4'.
n = 21.5

Simplifying
n = 21.5

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