5b-7c-(3b-9c)=

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Solution for 5b-7c-(3b-9c)= equation:


Simplifying
5b + -7c + -1(3b + -9c) = 0
5b + -7c + (3b * -1 + -9c * -1) = 0
5b + -7c + (-3b + 9c) = 0

Reorder the terms:
5b + -3b + -7c + 9c = 0

Combine like terms: 5b + -3b = 2b
2b + -7c + 9c = 0

Combine like terms: -7c + 9c = 2c
2b + 2c = 0

Solving
2b + 2c = 0

Solving for variable 'b'.

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

Add '-2c' to each side of the equation.
2b + 2c + -2c = 0 + -2c

Combine like terms: 2c + -2c = 0
2b + 0 = 0 + -2c
2b = 0 + -2c
Remove the zero:
2b = -2c

Divide each side by '2'.
b = -1c

Simplifying
b = -1c

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