4+9=4-4(x+3)+5x

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Solution for 4+9=4-4(x+3)+5x equation:


Simplifying
4 + 9 = 4 + -4(x + 3) + 5x

Combine like terms: 4 + 9 = 13
13 = 4 + -4(x + 3) + 5x

Reorder the terms:
13 = 4 + -4(3 + x) + 5x
13 = 4 + (3 * -4 + x * -4) + 5x
13 = 4 + (-12 + -4x) + 5x

Combine like terms: 4 + -12 = -8
13 = -8 + -4x + 5x

Combine like terms: -4x + 5x = 1x
13 = -8 + 1x

Solving
13 = -8 + 1x

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.
13 + -1x = -8 + 1x + -1x

Combine like terms: 1x + -1x = 0
13 + -1x = -8 + 0
13 + -1x = -8

Add '-13' to each side of the equation.
13 + -13 + -1x = -8 + -13

Combine like terms: 13 + -13 = 0
0 + -1x = -8 + -13
-1x = -8 + -13

Combine like terms: -8 + -13 = -21
-1x = -21

Divide each side by '-1'.
x = 21

Simplifying
x = 21

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