.7n-4=.9

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Solution for .7n-4=.9 equation: 


Simplifying
0.7n + -4 = 0.9

Reorder the terms:
-4 + 0.7n = 0.9

Solving
-4 + 0.7n = 0.9

Solving for variable 'n'.

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

Add '4' to each side of the equation.
-4 + 4 + 0.7n = 0.9 + 4

Combine like terms: -4 + 4 = 0
0 + 0.7n = 0.9 + 4
0.7n = 0.9 + 4

Combine like terms: 0.9 + 4 = 4.9
0.7n = 4.9

Divide each side by '0.7'.
n = 7

Simplifying
n = 7

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