3X+8+8X-21+30=180

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Solution for 3X+8+8X-21+30=180 equation:


Simplifying
3X + 8 + 8X + -21 + 30 = 180

Reorder the terms:
8 + -21 + 30 + 3X + 8X = 180

Combine like terms: 8 + -21 = -13
-13 + 30 + 3X + 8X = 180

Combine like terms: -13 + 30 = 17
17 + 3X + 8X = 180

Combine like terms: 3X + 8X = 11X
17 + 11X = 180

Solving
17 + 11X = 180

Solving for variable 'X'.

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

Add '-17' to each side of the equation.
17 + -17 + 11X = 180 + -17

Combine like terms: 17 + -17 = 0
0 + 11X = 180 + -17
11X = 180 + -17

Combine like terms: 180 + -17 = 163
11X = 163

Divide each side by '11'.
X = 14.81818182

Simplifying
X = 14.81818182

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