3(9-b)-47=21b-4(5+6b)

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Solution for 3(9-b)-47=21b-4(5+6b) equation:


Simplifying
3(9 + -1b) + -47 = 21b + -4(5 + 6b)
(9 * 3 + -1b * 3) + -47 = 21b + -4(5 + 6b)
(27 + -3b) + -47 = 21b + -4(5 + 6b)

Reorder the terms:
27 + -47 + -3b = 21b + -4(5 + 6b)

Combine like terms: 27 + -47 = -20
-20 + -3b = 21b + -4(5 + 6b)
-20 + -3b = 21b + (5 * -4 + 6b * -4)
-20 + -3b = 21b + (-20 + -24b)

Reorder the terms:
-20 + -3b = -20 + 21b + -24b

Combine like terms: 21b + -24b = -3b
-20 + -3b = -20 + -3b

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

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

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

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

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

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

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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