(3c^2+5c-9)-(6+15c+3c^2)=-25

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Solution for (3c^2+5c-9)-(6+15c+3c^2)=-25 equation:


Simplifying
(3c2 + 5c + -9) + -1(6 + 15c + 3c2) = -25

Reorder the terms:
(-9 + 5c + 3c2) + -1(6 + 15c + 3c2) = -25

Remove parenthesis around (-9 + 5c + 3c2)
-9 + 5c + 3c2 + -1(6 + 15c + 3c2) = -25
-9 + 5c + 3c2 + (6 * -1 + 15c * -1 + 3c2 * -1) = -25
-9 + 5c + 3c2 + (-6 + -15c + -3c2) = -25

Reorder the terms:
-9 + -6 + 5c + -15c + 3c2 + -3c2 = -25

Combine like terms: -9 + -6 = -15
-15 + 5c + -15c + 3c2 + -3c2 = -25

Combine like terms: 5c + -15c = -10c
-15 + -10c + 3c2 + -3c2 = -25

Combine like terms: 3c2 + -3c2 = 0
-15 + -10c + 0 = -25
-15 + -10c = -25

Solving
-15 + -10c = -25

Solving for variable 'c'.

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

Add '15' to each side of the equation.
-15 + 15 + -10c = -25 + 15

Combine like terms: -15 + 15 = 0
0 + -10c = -25 + 15
-10c = -25 + 15

Combine like terms: -25 + 15 = -10
-10c = -10

Divide each side by '-10'.
c = 1

Simplifying
c = 1

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