28=3x-5-7x+9

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Solution for 28=3x-5-7x+9 equation:


Simplifying
28 = 3x + -5 + -7x + 9

Reorder the terms:
28 = -5 + 9 + 3x + -7x

Combine like terms: -5 + 9 = 4
28 = 4 + 3x + -7x

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

Solving
28 = 4 + -4x

Solving for variable 'x'.

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

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

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

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

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

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

Divide each side by '4'.
x = -6

Simplifying
x = -6

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