2b-10=3b+21

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Solution for 2b-10=3b+21 equation:


Simplifying
2b + -10 = 3b + 21

Reorder the terms:
-10 + 2b = 3b + 21

Reorder the terms:
-10 + 2b = 21 + 3b

Solving
-10 + 2b = 21 + 3b

Solving for variable 'b'.

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

Add '-3b' to each side of the equation.
-10 + 2b + -3b = 21 + 3b + -3b

Combine like terms: 2b + -3b = -1b
-10 + -1b = 21 + 3b + -3b

Combine like terms: 3b + -3b = 0
-10 + -1b = 21 + 0
-10 + -1b = 21

Add '10' to each side of the equation.
-10 + 10 + -1b = 21 + 10

Combine like terms: -10 + 10 = 0
0 + -1b = 21 + 10
-1b = 21 + 10

Combine like terms: 21 + 10 = 31
-1b = 31

Divide each side by '-1'.
b = -31

Simplifying
b = -31

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