.5(3n-3)=.4(3n+1)

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Solution for .5(3n-3)=.4(3n+1) equation:


Simplifying
0.5(3n + -3) = 0.4(3n + 1)

Reorder the terms:
0.5(-3 + 3n) = 0.4(3n + 1)
(-3 * 0.5 + 3n * 0.5) = 0.4(3n + 1)
(-1.5 + 1.5n) = 0.4(3n + 1)

Reorder the terms:
-1.5 + 1.5n = 0.4(1 + 3n)
-1.5 + 1.5n = (1 * 0.4 + 3n * 0.4)
-1.5 + 1.5n = (0.4 + 1.2n)

Solving
-1.5 + 1.5n = 0.4 + 1.2n

Solving for variable 'n'.

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

Add '-1.2n' to each side of the equation.
-1.5 + 1.5n + -1.2n = 0.4 + 1.2n + -1.2n

Combine like terms: 1.5n + -1.2n = 0.3n
-1.5 + 0.3n = 0.4 + 1.2n + -1.2n

Combine like terms: 1.2n + -1.2n = 0.0
-1.5 + 0.3n = 0.4 + 0.0
-1.5 + 0.3n = 0.4

Add '1.5' to each side of the equation.
-1.5 + 1.5 + 0.3n = 0.4 + 1.5

Combine like terms: -1.5 + 1.5 = 0.0
0.0 + 0.3n = 0.4 + 1.5
0.3n = 0.4 + 1.5

Combine like terms: 0.4 + 1.5 = 1.9
0.3n = 1.9

Divide each side by '0.3'.
n = 6.333333333

Simplifying
n = 6.333333333

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