3x-6+4x-21=180

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Solution for 3x-6+4x-21=180 equation:


Simplifying
3x + -6 + 4x + -21 = 180

Reorder the terms:
-6 + -21 + 3x + 4x = 180

Combine like terms: -6 + -21 = -27
-27 + 3x + 4x = 180

Combine like terms: 3x + 4x = 7x
-27 + 7x = 180

Solving
-27 + 7x = 180

Solving for variable 'x'.

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

Add '27' to each side of the equation.
-27 + 27 + 7x = 180 + 27

Combine like terms: -27 + 27 = 0
0 + 7x = 180 + 27
7x = 180 + 27

Combine like terms: 180 + 27 = 207
7x = 207

Divide each side by '7'.
x = 29.57142857

Simplifying
x = 29.57142857

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