8x-28-x=400

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Solution for 8x-28-x=400 equation:


Simplifying
8x + -28 + -1x = 400

Reorder the terms:
-28 + 8x + -1x = 400

Combine like terms: 8x + -1x = 7x
-28 + 7x = 400

Solving
-28 + 7x = 400

Solving for variable 'x'.

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

Add '28' to each side of the equation.
-28 + 28 + 7x = 400 + 28

Combine like terms: -28 + 28 = 0
0 + 7x = 400 + 28
7x = 400 + 28

Combine like terms: 400 + 28 = 428
7x = 428

Divide each side by '7'.
x = 61.14285714

Simplifying
x = 61.14285714

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