4x+(X+9)=12

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Solution for 4x+(X+9)=12 equation:


Simplifying
4x + (X + 9) = 12

Reorder the terms:
4x + (9 + X) = 12

Remove parenthesis around (9 + X)
4x + 9 + X = 12

Reorder the terms:
9 + X + 4x = 12

Solving
9 + X + 4x = 12

Solving for variable 'X'.

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

Add '-9' to each side of the equation.
9 + X + -9 + 4x = 12 + -9

Reorder the terms:
9 + -9 + X + 4x = 12 + -9

Combine like terms: 9 + -9 = 0
0 + X + 4x = 12 + -9
X + 4x = 12 + -9

Combine like terms: 12 + -9 = 3
X + 4x = 3

Add '-4x' to each side of the equation.
X + 4x + -4x = 3 + -4x

Combine like terms: 4x + -4x = 0
X + 0 = 3 + -4x
X = 3 + -4x

Simplifying
X = 3 + -4x

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