9-7x=21-14x

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Solution for 9-7x=21-14x equation:


Simplifying
9 + -7x = 21 + -14x

Solving
9 + -7x = 21 + -14x

Solving for variable 'x'.

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

Add '14x' to each side of the equation.
9 + -7x + 14x = 21 + -14x + 14x

Combine like terms: -7x + 14x = 7x
9 + 7x = 21 + -14x + 14x

Combine like terms: -14x + 14x = 0
9 + 7x = 21 + 0
9 + 7x = 21

Add '-9' to each side of the equation.
9 + -9 + 7x = 21 + -9

Combine like terms: 9 + -9 = 0
0 + 7x = 21 + -9
7x = 21 + -9

Combine like terms: 21 + -9 = 12
7x = 12

Divide each side by '7'.
x = 1.714285714

Simplifying
x = 1.714285714

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