7(-1)-5(-7)=28

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Solution for 7(-1)-5(-7)=28 equation: 


Simplifying
7(-1) + -5(-7) = 28

Multiply 7 * -1
-7 + -5(-7) = 28

Multiply -5 * -7
-7 + 35 = 28

Combine like terms: -7 + 35 = 28
28 = 28

Add '-28' to each side of the equation.
28 + -28 = 28 + -28

Combine like terms: 28 + -28 = 0
0 = 28 + -28

Combine like terms: 28 + -28 = 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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