x+2(x-7)+(x-7)=103

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Solution for x+2(x-7)+(x-7)=103 equation:


Simplifying
x + 2(x + -7) + (x + -7) = 103

Reorder the terms:
x + 2(-7 + x) + (x + -7) = 103
x + (-7 * 2 + x * 2) + (x + -7) = 103
x + (-14 + 2x) + (x + -7) = 103

Reorder the terms:
x + -14 + 2x + (-7 + x) = 103

Remove parenthesis around (-7 + x)
x + -14 + 2x + -7 + x = 103

Reorder the terms:
-14 + -7 + x + 2x + x = 103

Combine like terms: -14 + -7 = -21
-21 + x + 2x + x = 103

Combine like terms: x + 2x = 3x
-21 + 3x + x = 103

Combine like terms: 3x + x = 4x
-21 + 4x = 103

Solving
-21 + 4x = 103

Solving for variable 'x'.

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

Add '21' to each side of the equation.
-21 + 21 + 4x = 103 + 21

Combine like terms: -21 + 21 = 0
0 + 4x = 103 + 21
4x = 103 + 21

Combine like terms: 103 + 21 = 124
4x = 124

Divide each side by '4'.
x = 31

Simplifying
x = 31

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