X+2y(3x)=-21

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Solution for X+2y(3x)=-21 equation:


Simplifying
X + 2y(3x) = -21

Remove parenthesis around (3x)
X + 2y * 3x = -21

Reorder the terms for easier multiplication:
X + 2 * 3y * x = -21

Multiply 2 * 3
X + 6y * x = -21

Multiply y * x
X + 6xy = -21

Solving
X + 6xy = -21

Solving for variable 'X'.

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

Add '-6xy' to each side of the equation.
X + 6xy + -6xy = -21 + -6xy

Combine like terms: 6xy + -6xy = 0
X + 0 = -21 + -6xy
X = -21 + -6xy

Simplifying
X = -21 + -6xy

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