0.9n+3=0.4n+1.5

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Solution for 0.9n+3=0.4n+1.5 equation:


Simplifying
0.9n + 3 = 0.4n + 1.5

Reorder the terms:
3 + 0.9n = 0.4n + 1.5

Reorder the terms:
3 + 0.9n = 1.5 + 0.4n

Solving
3 + 0.9n = 1.5 + 0.4n

Solving for variable 'n'.

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

Add '-0.4n' to each side of the equation.
3 + 0.9n + -0.4n = 1.5 + 0.4n + -0.4n

Combine like terms: 0.9n + -0.4n = 0.5n
3 + 0.5n = 1.5 + 0.4n + -0.4n

Combine like terms: 0.4n + -0.4n = 0.0
3 + 0.5n = 1.5 + 0.0
3 + 0.5n = 1.5

Add '-3' to each side of the equation.
3 + -3 + 0.5n = 1.5 + -3

Combine like terms: 3 + -3 = 0
0 + 0.5n = 1.5 + -3
0.5n = 1.5 + -3

Combine like terms: 1.5 + -3 = -1.5
0.5n = -1.5

Divide each side by '0.5'.
n = -3

Simplifying
n = -3

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