3x-7*3-x=8

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Solution for 3x-7*3-x=8 equation:


Simplifying
3x + -7 * 3 + -1x = 8

Multiply -7 * 3
3x + -21 + -1x = 8

Reorder the terms:
-21 + 3x + -1x = 8

Combine like terms: 3x + -1x = 2x
-21 + 2x = 8

Solving
-21 + 2x = 8

Solving for variable 'x'.

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

Add '21' to each side of the equation.
-21 + 21 + 2x = 8 + 21

Combine like terms: -21 + 21 = 0
0 + 2x = 8 + 21
2x = 8 + 21

Combine like terms: 8 + 21 = 29
2x = 29

Divide each side by '2'.
x = 14.5

Simplifying
x = 14.5

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