7x=21-2x

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Solution for 7x=21-2x equation: 


Simplifying
7x = 21 + -2x

Solving
7x = 21 + -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 = 21 + -2x + 2x

Combine like terms: 7x + 2x = 9x
9x = 21 + -2x + 2x

Combine like terms: -2x + 2x = 0
9x = 21 + 0
9x = 21

Divide each side by '9'.
x = 2.333333333

Simplifying
x = 2.333333333

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