6X+3=3X+21

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Solution for 6X+3=3X+21 equation:


Simplifying
6X + 3 = 3X + 21

Reorder the terms:
3 + 6X = 3X + 21

Reorder the terms:
3 + 6X = 21 + 3X

Solving
3 + 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.
3 + 6X + -3X = 21 + 3X + -3X

Combine like terms: 6X + -3X = 3X
3 + 3X = 21 + 3X + -3X

Combine like terms: 3X + -3X = 0
3 + 3X = 21 + 0
3 + 3X = 21

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

Combine like terms: 3 + -3 = 0
0 + 3X = 21 + -3
3X = 21 + -3

Combine like terms: 21 + -3 = 18
3X = 18

Divide each side by '3'.
X = 6

Simplifying
X = 6

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