7=8-2b

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Solution for 7=8-2b equation:


Simplifying
7 = 8 + -2b

Solving
7 = 8 + -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 = 8 + -2b + 2b

Combine like terms: -2b + 2b = 0
7 + 2b = 8 + 0
7 + 2b = 8

Add '-7' to each side of the equation.
7 + -7 + 2b = 8 + -7

Combine like terms: 7 + -7 = 0
0 + 2b = 8 + -7
2b = 8 + -7

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

Divide each side by '2'.
b = 0.5

Simplifying
b = 0.5

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