28=-2x+7(-x+13)

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Solution for 28=-2x+7(-x+13) equation:


Simplifying
28 = -2x + 7(-1x + 13)

Reorder the terms:
28 = -2x + 7(13 + -1x)
28 = -2x + (13 * 7 + -1x * 7)
28 = -2x + (91 + -7x)

Reorder the terms:
28 = 91 + -2x + -7x

Combine like terms: -2x + -7x = -9x
28 = 91 + -9x

Solving
28 = 91 + -9x

Solving for variable 'x'.

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

Add '9x' to each side of the equation.
28 + 9x = 91 + -9x + 9x

Combine like terms: -9x + 9x = 0
28 + 9x = 91 + 0
28 + 9x = 91

Add '-28' to each side of the equation.
28 + -28 + 9x = 91 + -28

Combine like terms: 28 + -28 = 0
0 + 9x = 91 + -28
9x = 91 + -28

Combine like terms: 91 + -28 = 63
9x = 63

Divide each side by '9'.
x = 7

Simplifying
x = 7

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