8x-84=87

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Solution for 8x-84=87 equation:


Simplifying
8x + -84 = 87

Reorder the terms:
-84 + 8x = 87

Solving
-84 + 8x = 87

Solving for variable 'x'.

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

Add '84' to each side of the equation.
-84 + 84 + 8x = 87 + 84

Combine like terms: -84 + 84 = 0
0 + 8x = 87 + 84
8x = 87 + 84

Combine like terms: 87 + 84 = 171
8x = 171

Divide each side by '8'.
x = 21.375

Simplifying
x = 21.375

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