13x-4(x-7)=55

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Solution for 13x-4(x-7)=55 equation:


Simplifying
13x + -4(x + -7) = 55

Reorder the terms:
13x + -4(-7 + x) = 55
13x + (-7 * -4 + x * -4) = 55
13x + (28 + -4x) = 55

Reorder the terms:
28 + 13x + -4x = 55

Combine like terms: 13x + -4x = 9x
28 + 9x = 55

Solving
28 + 9x = 55

Solving for variable 'x'.

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

Add '-28' to each side of the equation.
28 + -28 + 9x = 55 + -28

Combine like terms: 28 + -28 = 0
0 + 9x = 55 + -28
9x = 55 + -28

Combine like terms: 55 + -28 = 27
9x = 27

Divide each side by '9'.
x = 3

Simplifying
x = 3

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