4(x-5)=9x

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Solution for 4(x-5)=9x equation:


Simplifying
4(x + -5) = 9x

Reorder the terms:
4(-5 + x) = 9x
(-5 * 4 + x * 4) = 9x
(-20 + 4x) = 9x

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

Combine like terms: 4x + -9x = -5x
-20 + -5x = 9x + -9x

Combine like terms: 9x + -9x = 0
-20 + -5x = 0

Add '20' to each side of the equation.
-20 + 20 + -5x = 0 + 20

Combine like terms: -20 + 20 = 0
0 + -5x = 0 + 20
-5x = 0 + 20

Combine like terms: 0 + 20 = 20
-5x = 20

Divide each side by '-5'.
x = -4

Simplifying
x = -4

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