7(-13)-3(-13+1)=-55

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Solution for 7(-13)-3(-13+1)=-55 equation: 


Simplifying
7(-13) + -3(-13 + 1) = -55

Multiply 7 * -13
-91 + -3(-13 + 1) = -55

Combine like terms: -13 + 1 = -12
-91 + -3(-12) = -55

Multiply -3 * -12
-91 + 36 = -55

Combine like terms: -91 + 36 = -55
-55 = -55

Add '55' to each side of the equation.
-55 + 55 = -55 + 55

Combine like terms: -55 + 55 = 0
0 = -55 + 55

Combine like terms: -55 + 55 = 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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