28=8x+12-7-x

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Solution for 28=8x+12-7-x equation:


Simplifying
28 = 8x + 12 + -7 + -1x

Reorder the terms:
28 = 12 + -7 + 8x + -1x

Combine like terms: 12 + -7 = 5
28 = 5 + 8x + -1x

Combine like terms: 8x + -1x = 7x
28 = 5 + 7x

Solving
28 = 5 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
28 + -7x = 5 + 7x + -7x

Combine like terms: 7x + -7x = 0
28 + -7x = 5 + 0
28 + -7x = 5

Add '-28' to each side of the equation.
28 + -28 + -7x = 5 + -28

Combine like terms: 28 + -28 = 0
0 + -7x = 5 + -28
-7x = 5 + -28

Combine like terms: 5 + -28 = -23
-7x = -23

Divide each side by '-7'.
x = 3.285714286

Simplifying
x = 3.285714286

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