x-15=7-5(x-4)

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Solution for x-15=7-5(x-4) equation:


Simplifying
x + -15 = 7 + -5(x + -4)

Reorder the terms:
-15 + x = 7 + -5(x + -4)

Reorder the terms:
-15 + x = 7 + -5(-4 + x)
-15 + x = 7 + (-4 * -5 + x * -5)
-15 + x = 7 + (20 + -5x)

Combine like terms: 7 + 20 = 27
-15 + x = 27 + -5x

Solving
-15 + x = 27 + -5x

Solving for variable 'x'.

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

Add '5x' to each side of the equation.
-15 + x + 5x = 27 + -5x + 5x

Combine like terms: x + 5x = 6x
-15 + 6x = 27 + -5x + 5x

Combine like terms: -5x + 5x = 0
-15 + 6x = 27 + 0
-15 + 6x = 27

Add '15' to each side of the equation.
-15 + 15 + 6x = 27 + 15

Combine like terms: -15 + 15 = 0
0 + 6x = 27 + 15
6x = 27 + 15

Combine like terms: 27 + 15 = 42
6x = 42

Divide each side by '6'.
x = 7

Simplifying
x = 7

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