Solve for x
x = \frac{15}{2} = 7\frac{1}{2} = 7.5
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2x-6=9
Swap sides so that all variable terms are on the left hand side.
2x=9+6
Add 6 to both sides.
2x=15
Add 9 and 6 to get 15.
x=\frac{15}{2}
Divide both sides by 2.
Examples
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Linear equation
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
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Limits
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