8S+4S-18=9S-12-D+1

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Solution for 8S+4S-18=9S-12-D+1 equation:


Simplifying
8S + 4S + -18 = 9S + -12 + -1D + 1

Reorder the terms:
-18 + 8S + 4S = 9S + -12 + -1D + 1

Combine like terms: 8S + 4S = 12S
-18 + 12S = 9S + -12 + -1D + 1

Reorder the terms:
-18 + 12S = -12 + 1 + -1D + 9S

Combine like terms: -12 + 1 = -11
-18 + 12S = -11 + -1D + 9S

Solving
-18 + 12S = -11 + -1D + 9S

Solving for variable 'S'.

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

Add '-9S' to each side of the equation.
-18 + 12S + -9S = -11 + -1D + 9S + -9S

Combine like terms: 12S + -9S = 3S
-18 + 3S = -11 + -1D + 9S + -9S

Combine like terms: 9S + -9S = 0
-18 + 3S = -11 + -1D + 0
-18 + 3S = -11 + -1D

Add '18' to each side of the equation.
-18 + 18 + 3S = -11 + 18 + -1D

Combine like terms: -18 + 18 = 0
0 + 3S = -11 + 18 + -1D
3S = -11 + 18 + -1D

Combine like terms: -11 + 18 = 7
3S = 7 + -1D

Divide each side by '3'.
S = 2.333333333 + -0.3333333333D

Simplifying
S = 2.333333333 + -0.3333333333D

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