2x-9=4x-20

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Solution for 2x-9=4x-20 equation:


Simplifying
2x + -9 = 4x + -20

Reorder the terms:
-9 + 2x = 4x + -20

Reorder the terms:
-9 + 2x = -20 + 4x

Solving
-9 + 2x = -20 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
-9 + 2x + -4x = -20 + 4x + -4x

Combine like terms: 2x + -4x = -2x
-9 + -2x = -20 + 4x + -4x

Combine like terms: 4x + -4x = 0
-9 + -2x = -20 + 0
-9 + -2x = -20

Add '9' to each side of the equation.
-9 + 9 + -2x = -20 + 9

Combine like terms: -9 + 9 = 0
0 + -2x = -20 + 9
-2x = -20 + 9

Combine like terms: -20 + 9 = -11
-2x = -11

Divide each side by '-2'.
x = 5.5

Simplifying
x = 5.5

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