8+1-2b=7

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Solution for 8+1-2b=7 equation: 


Simplifying
8 + 1 + -2b = 7

Combine like terms: 8 + 1 = 9
9 + -2b = 7

Solving
9 + -2b = 7

Solving for variable 'b'.

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

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

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

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

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

Simplifying
b = 1

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