3n+1.2=4n-0.9

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Solution for 3n+1.2=4n-0.9 equation:


Simplifying
3n + 1.2 = 4n + -0.9

Reorder the terms:
1.2 + 3n = 4n + -0.9

Reorder the terms:
1.2 + 3n = -0.9 + 4n

Solving
1.2 + 3n = -0.9 + 4n

Solving for variable 'n'.

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

Add '-4n' to each side of the equation.
1.2 + 3n + -4n = -0.9 + 4n + -4n

Combine like terms: 3n + -4n = -1n
1.2 + -1n = -0.9 + 4n + -4n

Combine like terms: 4n + -4n = 0
1.2 + -1n = -0.9 + 0
1.2 + -1n = -0.9

Add '-1.2' to each side of the equation.
1.2 + -1.2 + -1n = -0.9 + -1.2

Combine like terms: 1.2 + -1.2 = 0.0
0.0 + -1n = -0.9 + -1.2
-1n = -0.9 + -1.2

Combine like terms: -0.9 + -1.2 = -2.1
-1n = -2.1

Divide each side by '-1'.
n = 2.1

Simplifying
n = 2.1

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