7x-3-12=6

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Solution for 7x-3-12=6 equation: 


Simplifying
7x + -3 + -12 = 6

Reorder the terms:
-3 + -12 + 7x = 6

Combine like terms: -3 + -12 = -15
-15 + 7x = 6

Solving
-15 + 7x = 6

Solving for variable 'x'.

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

Add '15' to each side of the equation.
-15 + 15 + 7x = 6 + 15

Combine like terms: -15 + 15 = 0
0 + 7x = 6 + 15
7x = 6 + 15

Combine like terms: 6 + 15 = 21
7x = 21

Divide each side by '7'.
x = 3

Simplifying
x = 3

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