-8=3n+4n

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Solution for -8=3n+4n equation:


Simplifying
-8 = 3n + 4n

Combine like terms: 3n + 4n = 7n
-8 = 7n

Solving
-8 = 7n

Solving for variable 'n'.

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

Add '-7n' to each side of the equation.
-8 + -7n = 7n + -7n

Combine like terms: 7n + -7n = 0
-8 + -7n = 0

Add '8' to each side of the equation.
-8 + 8 + -7n = 0 + 8

Combine like terms: -8 + 8 = 0
0 + -7n = 0 + 8
-7n = 0 + 8

Combine like terms: 0 + 8 = 8
-7n = 8

Divide each side by '-7'.
n = -1.142857143

Simplifying
n = -1.142857143

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