10x=21+3x

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Solution for 10x=21+3x equation: 


Simplifying
10x = 21 + 3x

Solving
10x = 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.
10x + -3x = 21 + 3x + -3x

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

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

Divide each side by '7'.
x = 3

Simplifying
x = 3

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