x+x-7+((x-7)+2)=51

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Solution for x+x-7+((x-7)+2)=51 equation:


Simplifying
x + x + -7 + ((x + -7) + 2) = 51

Reorder the terms:
x + x + -7 + ((-7 + x) + 2) = 51

Remove parenthesis around (-7 + x)
x + x + -7 + (-7 + x + 2) = 51

Reorder the terms:
x + x + -7 + (-7 + 2 + x) = 51

Combine like terms: -7 + 2 = -5
x + x + -7 + (-5 + x) = 51

Remove parenthesis around (-5 + x)
x + x + -7 + -5 + x = 51

Reorder the terms:
-7 + -5 + x + x + x = 51

Combine like terms: -7 + -5 = -12
-12 + x + x + x = 51

Combine like terms: x + x = 2x
-12 + 2x + x = 51

Combine like terms: 2x + x = 3x
-12 + 3x = 51

Solving
-12 + 3x = 51

Solving for variable 'x'.

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

Add '12' to each side of the equation.
-12 + 12 + 3x = 51 + 12

Combine like terms: -12 + 12 = 0
0 + 3x = 51 + 12
3x = 51 + 12

Combine like terms: 51 + 12 = 63
3x = 63

Divide each side by '3'.
x = 21

Simplifying
x = 21

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