4x-3=3+9

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


Simplifying
4x + -3 = 3 + 9

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

Combine like terms: 3 + 9 = 12
-3 + 4x = 12

Solving
-3 + 4x = 12

Solving for variable 'x'.

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

Add '3' to each side of the equation.
-3 + 3 + 4x = 12 + 3

Combine like terms: -3 + 3 = 0
0 + 4x = 12 + 3
4x = 12 + 3

Combine like terms: 12 + 3 = 15
4x = 15

Divide each side by '4'.
x = 3.75

Simplifying
x = 3.75

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