0=7[x-3]

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Solution for 0=7[x-3] equation: 


Simplifying
0 = 7[x + -3]

Reorder the terms:
0 = 7[-3 + x]
0 = [-3 * 7 + x * 7]
0 = [-21 + 7x]

Solving
0 = -21 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
0 + -7x = -21 + 7x + -7x
Remove the zero:
-7x = -21 + 7x + -7x

Combine like terms: 7x + -7x = 0
-7x = -21 + 0
-7x = -21

Divide each side by '-7'.
x = 3

Simplifying
x = 3

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