-10x+9=-9(x-1)

Apply the distributive property.

-10x+9=-9x-9⋅-1

Multiply -9 by -1.

-10x+9=-9x+9

-10x+9=-9x+9

Add 9x to both sides of the equation.

-10x+9+9x=9

Add -10x and 9x.

-x+9=9

-x+9=9

Subtract 9 from both sides of the equation.

-x=9-9

Subtract 9 from 9.

-x=0

-x=0

Multiply each term in -x=0 by -1.

(-x)⋅-1=0⋅-1

Multiply (-x)⋅-1.

Multiply -1 by -1.

1x=0⋅-1

Multiply x by 1.

x=0⋅-1

x=0⋅-1

Multiply 0 by -1.

x=0

x=0

Solve for x -10x+9=-9(x-1)