4=2(2)+b

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Solution for 4=2(2)+b equation:


Simplifying
4 = 2(2) + b

Multiply 2 * 2
4 = 4 + b

Add '-4' to each side of the equation.
4 + -4 = 4 + -4 + b

Combine like terms: 4 + -4 = 0
0 = 4 + -4 + b

Combine like terms: 4 + -4 = 0
0 = 0 + b
0 = b

Solving
0 = 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.
0 + -1b = b + -1b
Remove the zero:
-1b = b + -1b

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

Divide each side by '-1'.
b = 0

Simplifying
b = 0

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