20=8(2)+b

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Solution for 20=8(2)+b equation: 


Simplifying
20 = 8(2) + b

Multiply 8 * 2
20 = 16 + b

Solving
20 = 16 + b

Solving for variable 'b'.

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

Add '-1b' to each side of the equation.
20 + -1b = 16 + b + -1b

Combine like terms: b + -1b = 0
20 + -1b = 16 + 0
20 + -1b = 16

Add '-20' to each side of the equation.
20 + -20 + -1b = 16 + -20

Combine like terms: 20 + -20 = 0
0 + -1b = 16 + -20
-1b = 16 + -20

Combine like terms: 16 + -20 = -4
-1b = -4

Divide each side by '-1'.
b = 4

Simplifying
b = 4

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