28=7x+1-4x

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Solution for 28=7x+1-4x equation:


Simplifying
28 = 7x + 1 + -4x

Reorder the terms:
28 = 1 + 7x + -4x

Combine like terms: 7x + -4x = 3x
28 = 1 + 3x

Solving
28 = 1 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
28 + -3x = 1 + 3x + -3x

Combine like terms: 3x + -3x = 0
28 + -3x = 1 + 0
28 + -3x = 1

Add '-28' to each side of the equation.
28 + -28 + -3x = 1 + -28

Combine like terms: 28 + -28 = 0
0 + -3x = 1 + -28
-3x = 1 + -28

Combine like terms: 1 + -28 = -27
-3x = -27

Divide each side by '-3'.
x = 9

Simplifying
x = 9

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