15+x+27=102-x

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Solution for 15+x+27=102-x equation:


Simplifying
15 + x + 27 = 102 + -1x

Reorder the terms:
15 + 27 + x = 102 + -1x

Combine like terms: 15 + 27 = 42
42 + x = 102 + -1x

Solving
42 + x = 102 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
42 + x + x = 102 + -1x + x

Combine like terms: x + x = 2x
42 + 2x = 102 + -1x + x

Combine like terms: -1x + x = 0
42 + 2x = 102 + 0
42 + 2x = 102

Add '-42' to each side of the equation.
42 + -42 + 2x = 102 + -42

Combine like terms: 42 + -42 = 0
0 + 2x = 102 + -42
2x = 102 + -42

Combine like terms: 102 + -42 = 60
2x = 60

Divide each side by '2'.
x = 30

Simplifying
x = 30

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