-4=4*-1

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Solution for -4=4*-1 equation: 


Simplifying
-4 = 4 * -1

Multiply 4 * -1
-4 = -4

Add '4' to each side of the equation.
-4 + 4 = -4 + 4

Combine like terms: -4 + 4 = 0
0 = -4 + 4

Combine like terms: -4 + 4 = 0
0 = 0

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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