Solve for x
x=\frac{9}{10}=0.9
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2\times 5=10x+1
Multiply both sides by 5.
10=10x+1
Multiply 2 and 5 to get 10.
10x+1=10
Swap sides so that all variable terms are on the left hand side.
10x=10-1
Subtract 1 from both sides.
10x=9
Subtract 1 from 10 to get 9.
x=\frac{9}{10}
Divide both sides by 10.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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Linear equation
y = 3x + 4
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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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