7+7x=21+x

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Solution for 7+7x=21+x equation:


Simplifying
7 + 7x = 21 + x

Solving
7 + 7x = 21 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
7 + 7x + -1x = 21 + x + -1x

Combine like terms: 7x + -1x = 6x
7 + 6x = 21 + x + -1x

Combine like terms: x + -1x = 0
7 + 6x = 21 + 0
7 + 6x = 21

Add '-7' to each side of the equation.
7 + -7 + 6x = 21 + -7

Combine like terms: 7 + -7 = 0
0 + 6x = 21 + -7
6x = 21 + -7

Combine like terms: 21 + -7 = 14
6x = 14

Divide each side by '6'.
x = 2.333333333

Simplifying
x = 2.333333333

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