-7(b+9)-2(10b-5)=

Solution for -7(b+9)-2(10b-5)= equation:

Simplifying
-7(b + 9) + -2(10b + -5) = 0

Reorder the terms:
-7(9 + b) + -2(10b + -5) = 0
(9 * -7 + b * -7) + -2(10b + -5) = 0
(-63 + -7b) + -2(10b + -5) = 0

Reorder the terms:
-63 + -7b + -2(-5 + 10b) = 0
-63 + -7b + (-5 * -2 + 10b * -2) = 0
-63 + -7b + (10 + -20b) = 0

Reorder the terms:
-63 + 10 + -7b + -20b = 0

Combine like terms: -63 + 10 = -53
-53 + -7b + -20b = 0

Combine like terms: -7b + -20b = -27b
-53 + -27b = 0

Solving
-53 + -27b = 0

Solving for variable 'b'.

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

Add '53' to each side of the equation.
-53 + 53 + -27b = 0 + 53

Combine like terms: -53 + 53 = 0
0 + -27b = 0 + 53
-27b = 0 + 53

Combine like terms: 0 + 53 = 53
-27b = 53

Divide each side by '-27'.
b = -1.962962963

Simplifying
b = -1.962962963