4x+7x-20=40-9x

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Solution for 4x+7x-20=40-9x equation: 


Simplifying
4x + 7x + -20 = 40 + -9x

Reorder the terms:
-20 + 4x + 7x = 40 + -9x

Combine like terms: 4x + 7x = 11x
-20 + 11x = 40 + -9x

Solving
-20 + 11x = 40 + -9x

Solving for variable 'x'.

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

Add '9x' to each side of the equation.
-20 + 11x + 9x = 40 + -9x + 9x

Combine like terms: 11x + 9x = 20x
-20 + 20x = 40 + -9x + 9x

Combine like terms: -9x + 9x = 0
-20 + 20x = 40 + 0
-20 + 20x = 40

Add '20' to each side of the equation.
-20 + 20 + 20x = 40 + 20

Combine like terms: -20 + 20 = 0
0 + 20x = 40 + 20
20x = 40 + 20

Combine like terms: 40 + 20 = 60
20x = 60

Divide each side by '20'.
x = 3

Simplifying
x = 3

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