2x+4x+x-21-7-3=180

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Solution for 2x+4x+x-21-7-3=180 equation: 


Simplifying
2x + 4x + x + -21 + -7 + -3 = 180

Reorder the terms:
-21 + -7 + -3 + 2x + 4x + x = 180

Combine like terms: -21 + -7 = -28
-28 + -3 + 2x + 4x + x = 180

Combine like terms: -28 + -3 = -31
-31 + 2x + 4x + x = 180

Combine like terms: 2x + 4x = 6x
-31 + 6x + x = 180

Combine like terms: 6x + x = 7x
-31 + 7x = 180

Solving
-31 + 7x = 180

Solving for variable 'x'.

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

Add '31' to each side of the equation.
-31 + 31 + 7x = 180 + 31

Combine like terms: -31 + 31 = 0
0 + 7x = 180 + 31
7x = 180 + 31

Combine like terms: 180 + 31 = 211
7x = 211

Divide each side by '7'.
x = 30.14285714

Simplifying
x = 30.14285714

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