-289=2b-7(7-4b)

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Solution for -289=2b-7(7-4b) equation:


Simplifying
-289 = 2b + -7(7 + -4b)
-289 = 2b + (7 * -7 + -4b * -7)
-289 = 2b + (-49 + 28b)

Reorder the terms:
-289 = -49 + 2b + 28b

Combine like terms: 2b + 28b = 30b
-289 = -49 + 30b

Solving
-289 = -49 + 30b

Solving for variable 'b'.

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

Add '-30b' to each side of the equation.
-289 + -30b = -49 + 30b + -30b

Combine like terms: 30b + -30b = 0
-289 + -30b = -49 + 0
-289 + -30b = -49

Add '289' to each side of the equation.
-289 + 289 + -30b = -49 + 289

Combine like terms: -289 + 289 = 0
0 + -30b = -49 + 289
-30b = -49 + 289

Combine like terms: -49 + 289 = 240
-30b = 240

Divide each side by '-30'.
b = -8

Simplifying
b = -8

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