x-3=4x+9

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Solution for x-3=4x+9 equation:


Simplifying
x + -3 = 4x + 9

Reorder the terms:
-3 + x = 4x + 9

Reorder the terms:
-3 + x = 9 + 4x

Solving
-3 + x = 9 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
-3 + x + -4x = 9 + 4x + -4x

Combine like terms: x + -4x = -3x
-3 + -3x = 9 + 4x + -4x

Combine like terms: 4x + -4x = 0
-3 + -3x = 9 + 0
-3 + -3x = 9

Add '3' to each side of the equation.
-3 + 3 + -3x = 9 + 3

Combine like terms: -3 + 3 = 0
0 + -3x = 9 + 3
-3x = 9 + 3

Combine like terms: 9 + 3 = 12
-3x = 12

Divide each side by '-3'.
x = -4

Simplifying
x = -4

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