Solve for x
x=5.2
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-x=2.6-7.8
Subtract 7.8 from both sides.
-x=-5.2
Subtract 7.8 from 2.6 to get -5.2.
x=5.2
Multiply both sides by -1.
Examples
Quadratic equation
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Linear equation
y = 3x + 4
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Matrix
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
Simultaneous equation
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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Limits
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