3-10=2b-9

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Solution for 3-10=2b-9 equation:


Simplifying
3 + -10 = 2b + -9

Combine like terms: 3 + -10 = -7
-7 = 2b + -9

Reorder the terms:
-7 = -9 + 2b

Solving
-7 = -9 + 2b

Solving for variable 'b'.

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

Add '-2b' to each side of the equation.
-7 + -2b = -9 + 2b + -2b

Combine like terms: 2b + -2b = 0
-7 + -2b = -9 + 0
-7 + -2b = -9

Add '7' to each side of the equation.
-7 + 7 + -2b = -9 + 7

Combine like terms: -7 + 7 = 0
0 + -2b = -9 + 7
-2b = -9 + 7

Combine like terms: -9 + 7 = -2
-2b = -2

Divide each side by '-2'.
b = 1

Simplifying
b = 1

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