3b+7=6b-20

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Solution for 3b+7=6b-20 equation:


Simplifying
3b + 7 = 6b + -20

Reorder the terms:
7 + 3b = 6b + -20

Reorder the terms:
7 + 3b = -20 + 6b

Solving
7 + 3b = -20 + 6b

Solving for variable 'b'.

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

Add '-6b' to each side of the equation.
7 + 3b + -6b = -20 + 6b + -6b

Combine like terms: 3b + -6b = -3b
7 + -3b = -20 + 6b + -6b

Combine like terms: 6b + -6b = 0
7 + -3b = -20 + 0
7 + -3b = -20

Add '-7' to each side of the equation.
7 + -7 + -3b = -20 + -7

Combine like terms: 7 + -7 = 0
0 + -3b = -20 + -7
-3b = -20 + -7

Combine like terms: -20 + -7 = -27
-3b = -27

Divide each side by '-3'.
b = 9

Simplifying
b = 9

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