x+(x-10)+(x-10+2)=30

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Solution for x+(x-10)+(x-10+2)=30 equation: 


Simplifying
x + (x + -10) + (x + -10 + 2) = 30

Reorder the terms:
x + (-10 + x) + (x + -10 + 2) = 30

Remove parenthesis around (-10 + x)
x + -10 + x + (x + -10 + 2) = 30

Reorder the terms:
x + -10 + x + (-10 + 2 + x) = 30

Combine like terms: -10 + 2 = -8
x + -10 + x + (-8 + x) = 30

Remove parenthesis around (-8 + x)
x + -10 + x + -8 + x = 30

Reorder the terms:
-10 + -8 + x + x + x = 30

Combine like terms: -10 + -8 = -18
-18 + x + x + x = 30

Combine like terms: x + x = 2x
-18 + 2x + x = 30

Combine like terms: 2x + x = 3x
-18 + 3x = 30

Solving
-18 + 3x = 30

Solving for variable 'x'.

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

Add '18' to each side of the equation.
-18 + 18 + 3x = 30 + 18

Combine like terms: -18 + 18 = 0
0 + 3x = 30 + 18
3x = 30 + 18

Combine like terms: 30 + 18 = 48
3x = 48

Divide each side by '3'.
x = 16

Simplifying
x = 16

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