2x+5x-20=257

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Solution for 2x+5x-20=257 equation:


Simplifying
2x + 5x + -20 = 257

Reorder the terms:
-20 + 2x + 5x = 257

Combine like terms: 2x + 5x = 7x
-20 + 7x = 257

Solving
-20 + 7x = 257

Solving for variable 'x'.

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

Add '20' to each side of the equation.
-20 + 20 + 7x = 257 + 20

Combine like terms: -20 + 20 = 0
0 + 7x = 257 + 20
7x = 257 + 20

Combine like terms: 257 + 20 = 277
7x = 277

Divide each side by '7'.
x = 39.57142857

Simplifying
x = 39.57142857

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