10(2.1q-2)+(7.5q+18)=0

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Solution for 10(2.1q-2)+(7.5q+18)=0 equation: 


Simplifying
10(2.1q + -2) + (7.5q + 18) = 0

Reorder the terms:
10(-2 + 2.1q) + (7.5q + 18) = 0
(-2 * 10 + 2.1q * 10) + (7.5q + 18) = 0
(-20 + 21q) + (7.5q + 18) = 0

Reorder the terms:
-20 + 21q + (18 + 7.5q) = 0

Remove parenthesis around (18 + 7.5q)
-20 + 21q + 18 + 7.5q = 0

Reorder the terms:
-20 + 18 + 21q + 7.5q = 0

Combine like terms: -20 + 18 = -2
-2 + 21q + 7.5q = 0

Combine like terms: 21q + 7.5q = 28.5q
-2 + 28.5q = 0

Solving
-2 + 28.5q = 0

Solving for variable 'q'.

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

Add '2' to each side of the equation.
-2 + 2 + 28.5q = 0 + 2

Combine like terms: -2 + 2 = 0
0 + 28.5q = 0 + 2
28.5q = 0 + 2

Combine like terms: 0 + 2 = 2
28.5q = 2

Divide each side by '28.5'.
q = 0.0701754386

Simplifying
q = 0.0701754386

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