6x+7=21+3x

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Solution for 6x+7=21+3x equation:


Simplifying
6x + 7 = 21 + 3x

Reorder the terms:
7 + 6x = 21 + 3x

Solving
7 + 6x = 21 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
7 + 6x + -3x = 21 + 3x + -3x

Combine like terms: 6x + -3x = 3x
7 + 3x = 21 + 3x + -3x

Combine like terms: 3x + -3x = 0
7 + 3x = 21 + 0
7 + 3x = 21

Add '-7' to each side of the equation.
7 + -7 + 3x = 21 + -7

Combine like terms: 7 + -7 = 0
0 + 3x = 21 + -7
3x = 21 + -7

Combine like terms: 21 + -7 = 14
3x = 14

Divide each side by '3'.
x = 4.666666667

Simplifying
x = 4.666666667

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