28=7x-3(x-4)

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Solution for 28=7x-3(x-4) equation:


Simplifying
28 = 7x + -3(x + -4)

Reorder the terms:
28 = 7x + -3(-4 + x)
28 = 7x + (-4 * -3 + x * -3)
28 = 7x + (12 + -3x)

Reorder the terms:
28 = 12 + 7x + -3x

Combine like terms: 7x + -3x = 4x
28 = 12 + 4x

Solving
28 = 12 + 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 = 12 + 4x + -4x

Combine like terms: 4x + -4x = 0
28 + -4x = 12 + 0
28 + -4x = 12

Add '-28' to each side of the equation.
28 + -28 + -4x = 12 + -28

Combine like terms: 28 + -28 = 0
0 + -4x = 12 + -28
-4x = 12 + -28

Combine like terms: 12 + -28 = -16
-4x = -16

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

Simplifying
x = 4

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