-10x-3=87

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Solution for -10x-3=87 equation: 


Simplifying
-10x + -3 = 87

Reorder the terms:
-3 + -10x = 87

Solving
-3 + -10x = 87

Solving for variable 'x'.

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

Add '3' to each side of the equation.
-3 + 3 + -10x = 87 + 3

Combine like terms: -3 + 3 = 0
0 + -10x = 87 + 3
-10x = 87 + 3

Combine like terms: 87 + 3 = 90
-10x = 90

Divide each side by '-10'.
x = -9

Simplifying
x = -9

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