3x(2x+7)=6x^2+14x-7

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Solution for 3x(2x+7)=6x^2+14x-7 equation:


Simplifying
3x(2x + 7) = 6x2 + 14x + -7

Reorder the terms:
3x(7 + 2x) = 6x2 + 14x + -7
(7 * 3x + 2x * 3x) = 6x2 + 14x + -7
(21x + 6x2) = 6x2 + 14x + -7

Reorder the terms:
21x + 6x2 = -7 + 14x + 6x2

Add '-6x2' to each side of the equation.
21x + 6x2 + -6x2 = -7 + 14x + 6x2 + -6x2

Combine like terms: 6x2 + -6x2 = 0
21x + 0 = -7 + 14x + 6x2 + -6x2
21x = -7 + 14x + 6x2 + -6x2

Combine like terms: 6x2 + -6x2 = 0
21x = -7 + 14x + 0
21x = -7 + 14x

Solving
21x = -7 + 14x

Solving for variable 'x'.

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

Add '-14x' to each side of the equation.
21x + -14x = -7 + 14x + -14x

Combine like terms: 21x + -14x = 7x
7x = -7 + 14x + -14x

Combine like terms: 14x + -14x = 0
7x = -7 + 0
7x = -7

Divide each side by '7'.
x = -1

Simplifying
x = -1

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