6=x(-1)

Solution for 6=x(-1) equation:

Simplifying
6 = x(-1)

Reorder the terms for easier multiplication:
6 = -1x

Solving
6 = -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
6 + x = -1x + x

Combine like terms: -1x + x = 0
6 + x = 0

Add '-6' to each side of the equation.
6 + -6 + x = 0 + -6

Combine like terms: 6 + -6 = 0
0 + x = 0 + -6
x = 0 + -6

Combine like terms: 0 + -6 = -6
x = -6

Simplifying
x = -6