187=19+91+(13-x)

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Solution for 187=19+91+(13-x) equation:


Simplifying
187 = 19 + 91 + (13 + -1x)

Remove parenthesis around (13 + -1x)
187 = 19 + 91 + 13 + -1x

Combine like terms: 19 + 91 = 110
187 = 110 + 13 + -1x

Combine like terms: 110 + 13 = 123
187 = 123 + -1x

Solving
187 = 123 + -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.
187 + x = 123 + -1x + x

Combine like terms: -1x + x = 0
187 + x = 123 + 0
187 + x = 123

Add '-187' to each side of the equation.
187 + -187 + x = 123 + -187

Combine like terms: 187 + -187 = 0
0 + x = 123 + -187
x = 123 + -187

Combine like terms: 123 + -187 = -64
x = -64

Simplifying
x = -64

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