6-7X=80-21X

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Solution for 6-7X=80-21X equation:


Simplifying
6 + -7X = 80 + -21X

Solving
6 + -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.
6 + -7X + 21X = 80 + -21X + 21X

Combine like terms: -7X + 21X = 14X
6 + 14X = 80 + -21X + 21X

Combine like terms: -21X + 21X = 0
6 + 14X = 80 + 0
6 + 14X = 80

Add '-6' to each side of the equation.
6 + -6 + 14X = 80 + -6

Combine like terms: 6 + -6 = 0
0 + 14X = 80 + -6
14X = 80 + -6

Combine like terms: 80 + -6 = 74
14X = 74

Divide each side by '14'.
X = 5.285714286

Simplifying
X = 5.285714286

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