4x-5(x+4)=9

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


Simplifying
4x + -5(x + 4) = 9

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

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

Combine like terms: 4x + -5x = -1x
-20 + -1x = 9

Solving
-20 + -1x = 9

Solving for variable 'x'.

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

Add '20' to each side of the equation.
-20 + 20 + -1x = 9 + 20

Combine like terms: -20 + 20 = 0
0 + -1x = 9 + 20
-1x = 9 + 20

Combine like terms: 9 + 20 = 29
-1x = 29

Divide each side by '-1'.
x = -29

Simplifying
x = -29

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