12+x-5+x+3=30

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Solution for 12+x-5+x+3=30 equation: 


Simplifying
12 + x + -5 + x + 3 = 30

Reorder the terms:
12 + -5 + 3 + x + x = 30

Combine like terms: 12 + -5 = 7
7 + 3 + x + x = 30

Combine like terms: 7 + 3 = 10
10 + x + x = 30

Combine like terms: x + x = 2x
10 + 2x = 30

Solving
10 + 2x = 30

Solving for variable 'x'.

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

Add '-10' to each side of the equation.
10 + -10 + 2x = 30 + -10

Combine like terms: 10 + -10 = 0
0 + 2x = 30 + -10
2x = 30 + -10

Combine like terms: 30 + -10 = 20
2x = 20

Divide each side by '2'.
x = 10

Simplifying
x = 10

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