x-1(x+1)=3*5

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Solution for x-1(x+1)=3*5 equation: 


Simplifying
x + -1(x + 1) = 3 * 5

Reorder the terms:
x + -1(1 + x) = 3 * 5
x + (1 * -1 + x * -1) = 3 * 5
x + (-1 + -1x) = 3 * 5

Reorder the terms:
-1 + x + -1x = 3 * 5

Combine like terms: x + -1x = 0
-1 + 0 = 3 * 5
-1 = 3 * 5

Multiply 3 * 5
-1 = 15

Solving
-1 = 15

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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