6x+78=57-21x

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Solution for 6x+78=57-21x equation:


Simplifying
6x + 78 = 57 + -21x

Reorder the terms:
78 + 6x = 57 + -21x

Solving
78 + 6x = 57 + -21x

Solving for variable 'x'.

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

Add '21x' to each side of the equation.
78 + 6x + 21x = 57 + -21x + 21x

Combine like terms: 6x + 21x = 27x
78 + 27x = 57 + -21x + 21x

Combine like terms: -21x + 21x = 0
78 + 27x = 57 + 0
78 + 27x = 57

Add '-78' to each side of the equation.
78 + -78 + 27x = 57 + -78

Combine like terms: 78 + -78 = 0
0 + 27x = 57 + -78
27x = 57 + -78

Combine like terms: 57 + -78 = -21
27x = -21

Divide each side by '27'.
x = -0.7777777778

Simplifying
x = -0.7777777778

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