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

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


Simplifying
5(b + 9) = 7(b + -5)

Reorder the terms:
5(9 + b) = 7(b + -5)
(9 * 5 + b * 5) = 7(b + -5)
(45 + 5b) = 7(b + -5)

Reorder the terms:
45 + 5b = 7(-5 + b)
45 + 5b = (-5 * 7 + b * 7)
45 + 5b = (-35 + 7b)

Solving
45 + 5b = -35 + 7b

Solving for variable 'b'.

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

Add '-7b' to each side of the equation.
45 + 5b + -7b = -35 + 7b + -7b

Combine like terms: 5b + -7b = -2b
45 + -2b = -35 + 7b + -7b

Combine like terms: 7b + -7b = 0
45 + -2b = -35 + 0
45 + -2b = -35

Add '-45' to each side of the equation.
45 + -45 + -2b = -35 + -45

Combine like terms: 45 + -45 = 0
0 + -2b = -35 + -45
-2b = -35 + -45

Combine like terms: -35 + -45 = -80
-2b = -80

Divide each side by '-2'.
b = 40

Simplifying
b = 40

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