7b=3b-(b+45)

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Solution for 7b=3b-(b+45) equation:


Simplifying
7b = 3b + -1(b + 45)

Reorder the terms:
7b = 3b + -1(45 + b)
7b = 3b + (45 * -1 + b * -1)
7b = 3b + (-45 + -1b)

Reorder the terms:
7b = -45 + 3b + -1b

Combine like terms: 3b + -1b = 2b
7b = -45 + 2b

Solving
7b = -45 + 2b

Solving for variable 'b'.

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

Add '-2b' to each side of the equation.
7b + -2b = -45 + 2b + -2b

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

Combine like terms: 2b + -2b = 0
5b = -45 + 0
5b = -45

Divide each side by '5'.
b = -9

Simplifying
b = -9

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