4x*2-12x+9=81

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Solution for 4x*2-12x+9=81 equation:


Simplifying
4x * 2 + -12x + 9 = 81

Reorder the terms for easier multiplication:
4 * 2x + -12x + 9 = 81

Multiply 4 * 2
8x + -12x + 9 = 81

Reorder the terms:
9 + 8x + -12x = 81

Combine like terms: 8x + -12x = -4x
9 + -4x = 81

Solving
9 + -4x = 81

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 + -9 + -4x = 81 + -9

Combine like terms: 9 + -9 = 0
0 + -4x = 81 + -9
-4x = 81 + -9

Combine like terms: 81 + -9 = 72
-4x = 72

Divide each side by '-4'.
x = -18

Simplifying
x = -18

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