3x-21+4x=273

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Solution for 3x-21+4x=273 equation:


Simplifying
3x + -21 + 4x = 273

Reorder the terms:
-21 + 3x + 4x = 273

Combine like terms: 3x + 4x = 7x
-21 + 7x = 273

Solving
-21 + 7x = 273

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 + 7x = 273 + 21

Combine like terms: -21 + 21 = 0
0 + 7x = 273 + 21
7x = 273 + 21

Combine like terms: 273 + 21 = 294
7x = 294

Divide each side by '7'.
x = 42

Simplifying
x = 42

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