3x-87=15

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Solution for 3x-87=15 equation: 


Simplifying
3x + -87 = 15

Reorder the terms:
-87 + 3x = 15

Solving
-87 + 3x = 15

Solving for variable 'x'.

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

Add '87' to each side of the equation.
-87 + 87 + 3x = 15 + 87

Combine like terms: -87 + 87 = 0
0 + 3x = 15 + 87
3x = 15 + 87

Combine like terms: 15 + 87 = 102
3x = 102

Divide each side by '3'.
x = 34

Simplifying
x = 34

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