-2x=1(21)-9

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Solution for -2x=1(21)-9 equation: 


Simplifying
-2x = 1(21) + -9

Multiply 1 * 21
-2x = 21 + -9

Combine like terms: 21 + -9 = 12
-2x = 12

Solving
-2x = 12

Solving for variable 'x'.

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

Divide each side by '-2'.
x = -6

Simplifying
x = -6

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