13*5+8-x=87

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Solution for 13*5+8-x=87 equation:


Simplifying
13 * 5 + 8 + -1x = 87

Multiply 13 * 5
65 + 8 + -1x = 87

Combine like terms: 65 + 8 = 73
73 + -1x = 87

Solving
73 + -1x = 87

Solving for variable 'x'.

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

Add '-73' to each side of the equation.
73 + -73 + -1x = 87 + -73

Combine like terms: 73 + -73 = 0
0 + -1x = 87 + -73
-1x = 87 + -73

Combine like terms: 87 + -73 = 14
-1x = 14

Divide each side by '-1'.
x = -14

Simplifying
x = -14

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