57=-21x+12x+3

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Solution for 57=-21x+12x+3 equation:


Simplifying
57 = -21x + 12x + 3

Reorder the terms:
57 = 3 + -21x + 12x

Combine like terms: -21x + 12x = -9x
57 = 3 + -9x

Solving
57 = 3 + -9x

Solving for variable 'x'.

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

Add '9x' to each side of the equation.
57 + 9x = 3 + -9x + 9x

Combine like terms: -9x + 9x = 0
57 + 9x = 3 + 0
57 + 9x = 3

Add '-57' to each side of the equation.
57 + -57 + 9x = 3 + -57

Combine like terms: 57 + -57 = 0
0 + 9x = 3 + -57
9x = 3 + -57

Combine like terms: 3 + -57 = -54
9x = -54

Divide each side by '9'.
x = -6

Simplifying
x = -6

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