7-3x-9=20

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Solution for 7-3x-9=20 equation:


Simplifying
7 + -3x + -9 = 20

Reorder the terms:
7 + -9 + -3x = 20

Combine like terms: 7 + -9 = -2
-2 + -3x = 20

Solving
-2 + -3x = 20

Solving for variable 'x'.

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

Add '2' to each side of the equation.
-2 + 2 + -3x = 20 + 2

Combine like terms: -2 + 2 = 0
0 + -3x = 20 + 2
-3x = 20 + 2

Combine like terms: 20 + 2 = 22
-3x = 22

Divide each side by '-3'.
x = -7.333333333

Simplifying
x = -7.333333333

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