Solve for b
b=22
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18=b-4
Multiply both sides of the equation by 2.
b-4=18
Swap sides so that all variable terms are on the left hand side.
b=18+4
Add 4 to both sides.
b=22
Add 18 and 4 to get 22.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
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Matrix
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Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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