9x*2-21=0

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Solution for 9x*2-21=0 equation:


Simplifying
9x * 2 + -21 = 0

Reorder the terms for easier multiplication:
9 * 2x + -21 = 0

Multiply 9 * 2
18x + -21 = 0

Reorder the terms:
-21 + 18x = 0

Solving
-21 + 18x = 0

Solving for variable 'x'.

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

Add '21' to each side of the equation.
-21 + 21 + 18x = 0 + 21

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

Combine like terms: 0 + 21 = 21
18x = 21

Divide each side by '18'.
x = 1.166666667

Simplifying
x = 1.166666667

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