4(x-9)-(9+2x)=x

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Solution for 4(x-9)-(9+2x)=x equation:


Simplifying
4(x + -9) + -1(9 + 2x) = x

Reorder the terms:
4(-9 + x) + -1(9 + 2x) = x
(-9 * 4 + x * 4) + -1(9 + 2x) = x
(-36 + 4x) + -1(9 + 2x) = x
-36 + 4x + (9 * -1 + 2x * -1) = x
-36 + 4x + (-9 + -2x) = x

Reorder the terms:
-36 + -9 + 4x + -2x = x

Combine like terms: -36 + -9 = -45
-45 + 4x + -2x = x

Combine like terms: 4x + -2x = 2x
-45 + 2x = x

Solving
-45 + 2x = x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-45 + 2x + -1x = x + -1x

Combine like terms: 2x + -1x = 1x
-45 + 1x = x + -1x

Combine like terms: x + -1x = 0
-45 + 1x = 0

Add '45' to each side of the equation.
-45 + 45 + 1x = 0 + 45

Combine like terms: -45 + 45 = 0
0 + 1x = 0 + 45
1x = 0 + 45

Combine like terms: 0 + 45 = 45
1x = 45

Divide each side by '1'.
x = 45

Simplifying
x = 45

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