Solve for x
x=0.8
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4.5+x=8.4-3.1
Add 2.7 and 1.8 to get 4.5.
4.5+x=5.3
Subtract 3.1 from 8.4 to get 5.3.
x=5.3-4.5
Subtract 4.5 from both sides.
x=0.8
Subtract 4.5 from 5.3 to get 0.8.
Examples
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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
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
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