12-7x=80-21x

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Solution for 12-7x=80-21x equation:


Simplifying
12 + -7x = 80 + -21x

Solving
12 + -7x = 80 + -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.
12 + -7x + 21x = 80 + -21x + 21x

Combine like terms: -7x + 21x = 14x
12 + 14x = 80 + -21x + 21x

Combine like terms: -21x + 21x = 0
12 + 14x = 80 + 0
12 + 14x = 80

Add '-12' to each side of the equation.
12 + -12 + 14x = 80 + -12

Combine like terms: 12 + -12 = 0
0 + 14x = 80 + -12
14x = 80 + -12

Combine like terms: 80 + -12 = 68
14x = 68

Divide each side by '14'.
x = 4.857142857

Simplifying
x = 4.857142857

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