x+6x=21+15+2x

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Solution for x+6x=21+15+2x equation:


Simplifying
x + 6x = 21 + 15 + 2x

Combine like terms: x + 6x = 7x
7x = 21 + 15 + 2x

Combine like terms: 21 + 15 = 36
7x = 36 + 2x

Solving
7x = 36 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
7x + -2x = 36 + 2x + -2x

Combine like terms: 7x + -2x = 5x
5x = 36 + 2x + -2x

Combine like terms: 2x + -2x = 0
5x = 36 + 0
5x = 36

Divide each side by '5'.
x = 7.2

Simplifying
x = 7.2

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