.20(n+30)+.40n-3=4+.60n-7

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Solution for .20(n+30)+.40n-3=4+.60n-7 equation:


Simplifying
0.20(n + 30) + 0.40n + -3 = 4 + 0.60n + -7

Reorder the terms:
0.20(30 + n) + 0.40n + -3 = 4 + 0.60n + -7
(30 * 0.20 + n * 0.20) + 0.40n + -3 = 4 + 0.60n + -7
(6 + 0.20n) + 0.40n + -3 = 4 + 0.60n + -7

Reorder the terms:
6 + -3 + 0.20n + 0.40n = 4 + 0.60n + -7

Combine like terms: 6 + -3 = 3
3 + 0.20n + 0.40n = 4 + 0.60n + -7

Combine like terms: 0.20n + 0.40n = 0.6n
3 + 0.6n = 4 + 0.60n + -7

Reorder the terms:
3 + 0.6n = 4 + -7 + 0.60n

Combine like terms: 4 + -7 = -3
3 + 0.6n = -3 + 0.60n

Add '-0.6n' to each side of the equation.
3 + 0.6n + -0.6n = -3 + 0.60n + -0.6n

Combine like terms: 0.6n + -0.6n = 0.0
3 + 0.0 = -3 + 0.60n + -0.6n
3 = -3 + 0.60n + -0.6n

Combine like terms: 0.60n + -0.6n = 0.00
3 = -3 + 0.00
3 = -3

Solving
3 = -3

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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