7(7b-4)=-420

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Solution for 7(7b-4)=-420 equation:


Simplifying
7(7b + -4) = -420

Reorder the terms:
7(-4 + 7b) = -420
(-4 * 7 + 7b * 7) = -420
(-28 + 49b) = -420

Solving
-28 + 49b = -420

Solving for variable 'b'.

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

Add '28' to each side of the equation.
-28 + 28 + 49b = -420 + 28

Combine like terms: -28 + 28 = 0
0 + 49b = -420 + 28
49b = -420 + 28

Combine like terms: -420 + 28 = -392
49b = -392

Divide each side by '49'.
b = -8

Simplifying
b = -8

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