9x-(4x+25)=20

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Solution for 9x-(4x+25)=20 equation:


Simplifying
9x + -1(4x + 25) = 20

Reorder the terms:
9x + -1(25 + 4x) = 20
9x + (25 * -1 + 4x * -1) = 20
9x + (-25 + -4x) = 20

Reorder the terms:
-25 + 9x + -4x = 20

Combine like terms: 9x + -4x = 5x
-25 + 5x = 20

Solving
-25 + 5x = 20

Solving for variable 'x'.

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

Add '25' to each side of the equation.
-25 + 25 + 5x = 20 + 25

Combine like terms: -25 + 25 = 0
0 + 5x = 20 + 25
5x = 20 + 25

Combine like terms: 20 + 25 = 45
5x = 45

Divide each side by '5'.
x = 9

Simplifying
x = 9

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