18x(18x+1)=18x+21

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Solution for 18x(18x+1)=18x+21 equation: 


Simplifying
18x(18x + 1) = 18x + 21

Reorder the terms:
18x(1 + 18x) = 18x + 21
(1 * 18x + 18x * 18x) = 18x + 21
(18x + 324x2) = 18x + 21

Reorder the terms:
18x + 324x2 = 21 + 18x

Add '-18x' to each side of the equation.
18x + -18x + 324x2 = 21 + 18x + -18x

Combine like terms: 18x + -18x = 0
0 + 324x2 = 21 + 18x + -18x
324x2 = 21 + 18x + -18x

Combine like terms: 18x + -18x = 0
324x2 = 21 + 0
324x2 = 21

Solving
324x2 = 21

Solving for variable 'x'.

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

Divide each side by '324'.
x2 = 0.06481481481

Simplifying
x2 = 0.06481481481

Take the square root of each side:
x = {-0.254587539, 0.254587539}

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