Solve for b
b=\frac{P-2i}{2}
Solve for P
P=2\left(b+i\right)
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P=2i+2b
Use the distributive property to multiply 2 by i+b.
2i+2b=P
Swap sides so that all variable terms are on the left hand side.
2b=P-2i
Subtract 2i from both sides.
\frac{2b}{2}=\frac{P-2i}{2}
Divide both sides by 2.
b=\frac{P-2i}{2}
Dividing by 2 undoes the multiplication by 2.
b=\frac{P}{2}-i
Divide P-2i by 2.
P=2i+2b
Use the distributive property to multiply 2 by i+b.
Examples
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y = 3x + 4
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Matrix
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Simultaneous equation
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Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
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