4*[x-3]=9

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Solution for 4*[x-3]=9 equation:


Simplifying
4[x + -3] = 9

Reorder the terms:
4[-3 + x] = 9
[-3 * 4 + x * 4] = 9
[-12 + 4x] = 9

Solving
-12 + 4x = 9

Solving for variable 'x'.

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

Add '12' to each side of the equation.
-12 + 12 + 4x = 9 + 12

Combine like terms: -12 + 12 = 0
0 + 4x = 9 + 12
4x = 9 + 12

Combine like terms: 9 + 12 = 21
4x = 21

Divide each side by '4'.
x = 5.25

Simplifying
x = 5.25

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