20=12x-3-7x

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Solution for 20=12x-3-7x equation:


Simplifying
20 = 12x + -3 + -7x

Reorder the terms:
20 = -3 + 12x + -7x

Combine like terms: 12x + -7x = 5x
20 = -3 + 5x

Solving
20 = -3 + 5x

Solving for variable 'x'.

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

Add '-5x' to each side of the equation.
20 + -5x = -3 + 5x + -5x

Combine like terms: 5x + -5x = 0
20 + -5x = -3 + 0
20 + -5x = -3

Add '-20' to each side of the equation.
20 + -20 + -5x = -3 + -20

Combine like terms: 20 + -20 = 0
0 + -5x = -3 + -20
-5x = -3 + -20

Combine like terms: -3 + -20 = -23
-5x = -23

Divide each side by '-5'.
x = 4.6

Simplifying
x = 4.6

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