4+8=9n-7

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Solution for 4+8=9n-7 equation:


Simplifying
4 + 8 = 9n + -7

Combine like terms: 4 + 8 = 12
12 = 9n + -7

Reorder the terms:
12 = -7 + 9n

Solving
12 = -7 + 9n

Solving for variable 'n'.

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

Add '-9n' to each side of the equation.
12 + -9n = -7 + 9n + -9n

Combine like terms: 9n + -9n = 0
12 + -9n = -7 + 0
12 + -9n = -7

Add '-12' to each side of the equation.
12 + -12 + -9n = -7 + -12

Combine like terms: 12 + -12 = 0
0 + -9n = -7 + -12
-9n = -7 + -12

Combine like terms: -7 + -12 = -19
-9n = -19

Divide each side by '-9'.
n = 2.111111111

Simplifying
n = 2.111111111

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