B-7[B-6(3-B)]=270

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Solution for B-7[B-6(3-B)]=270 equation:


Simplifying
B + -7[B + -6(3 + -1B)] = 270
B + -7[B + (3 * -6 + -1B * -6)] = 270
B + -7[B + (-18 + 6B)] = 270

Reorder the terms:
B + -7[-18 + B + 6B] = 270

Combine like terms: B + 6B = 7B
B + -7[-18 + 7B] = 270
B + [-18 * -7 + 7B * -7] = 270
B + [126 + -49B] = 270

Reorder the terms:
126 + B + -49B = 270

Combine like terms: B + -49B = -48B
126 + -48B = 270

Solving
126 + -48B = 270

Solving for variable 'B'.

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

Add '-126' to each side of the equation.
126 + -126 + -48B = 270 + -126

Combine like terms: 126 + -126 = 0
0 + -48B = 270 + -126
-48B = 270 + -126

Combine like terms: 270 + -126 = 144
-48B = 144

Divide each side by '-48'.
B = -3

Simplifying
B = -3

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