-9=0(10)+b

Solution for -9=0(10)+b equation:

Simplifying
-9 = 0(10) + b

Multiply 0 * 10
-9 = 0 + b

Anything times zero is zero.
-9 = 0 + b
Remove the zero:
-9 = b

Solving
-9 = b

Solving for variable 'b'.

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

Add '-1b' to each side of the equation.
-9 + -1b = b + -1b

Combine like terms: b + -1b = 0
-9 + -1b = 0

Add '9' to each side of the equation.
-9 + 9 + -1b = 0 + 9

Combine like terms: -9 + 9 = 0
0 + -1b = 0 + 9
-1b = 0 + 9

Combine like terms: 0 + 9 = 9
-1b = 9

Divide each side by '-1'.
b = -9

Simplifying
b = -9