7.8=3+.1n+.77n

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Solution for 7.8=3+.1n+.77n equation:


Simplifying
7.8 = 3 + 0.1n + 0.77n

Combine like terms: 0.1n + 0.77n = 0.87n
7.8 = 3 + 0.87n

Solving
7.8 = 3 + 0.87n

Solving for variable 'n'.

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

Add '-0.87n' to each side of the equation.
7.8 + -0.87n = 3 + 0.87n + -0.87n

Combine like terms: 0.87n + -0.87n = 0.00
7.8 + -0.87n = 3 + 0.00
7.8 + -0.87n = 3

Add '-7.8' to each side of the equation.
7.8 + -7.8 + -0.87n = 3 + -7.8

Combine like terms: 7.8 + -7.8 = 0.0
0.0 + -0.87n = 3 + -7.8
-0.87n = 3 + -7.8

Combine like terms: 3 + -7.8 = -4.8
-0.87n = -4.8

Divide each side by '-0.87'.
n = 5.517241379

Simplifying
n = 5.517241379

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