3x=21+10x

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Solution for 3x=21+10x equation: 


Simplifying
3x = 21 + 10x

Solving
3x = 21 + 10x

Solving for variable 'x'.

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

Add '-10x' to each side of the equation.
3x + -10x = 21 + 10x + -10x

Combine like terms: 3x + -10x = -7x
-7x = 21 + 10x + -10x

Combine like terms: 10x + -10x = 0
-7x = 21 + 0
-7x = 21

Divide each side by '-7'.
x = -3

Simplifying
x = -3

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