7x-9=28+4(x-1)

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Solution for 7x-9=28+4(x-1) equation:


Simplifying
7x + -9 = 28 + 4(x + -1)

Reorder the terms:
-9 + 7x = 28 + 4(x + -1)

Reorder the terms:
-9 + 7x = 28 + 4(-1 + x)
-9 + 7x = 28 + (-1 * 4 + x * 4)
-9 + 7x = 28 + (-4 + 4x)

Combine like terms: 28 + -4 = 24
-9 + 7x = 24 + 4x

Solving
-9 + 7x = 24 + 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.
-9 + 7x + -4x = 24 + 4x + -4x

Combine like terms: 7x + -4x = 3x
-9 + 3x = 24 + 4x + -4x

Combine like terms: 4x + -4x = 0
-9 + 3x = 24 + 0
-9 + 3x = 24

Add '9' to each side of the equation.
-9 + 9 + 3x = 24 + 9

Combine like terms: -9 + 9 = 0
0 + 3x = 24 + 9
3x = 24 + 9

Combine like terms: 24 + 9 = 33
3x = 33

Divide each side by '3'.
x = 11

Simplifying
x = 11

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