28=7x+4-4x

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


Simplifying
28 = 7x + 4 + -4x

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

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

Solving
28 = 4 + 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 = 4 + 3x + -3x

Combine like terms: 3x + -3x = 0
28 + -3x = 4 + 0
28 + -3x = 4

Add '-28' to each side of the equation.
28 + -28 + -3x = 4 + -28

Combine like terms: 28 + -28 = 0
0 + -3x = 4 + -28
-3x = 4 + -28

Combine like terms: 4 + -28 = -24
-3x = -24

Divide each side by '-3'.
x = 8

Simplifying
x = 8

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