21=6x+7

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Solution for 21=6x+7 equation:


Simplifying
21 = 6x + 7

Reorder the terms:
21 = 7 + 6x

Solving
21 = 7 + 6x

Solving for variable 'x'.

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

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

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

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

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

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

Divide each side by '-6'.
x = 2.333333333

Simplifying
x = 2.333333333

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