Solve for x
x = -\frac{23}{2} = -11\frac{1}{2} = -11.5
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100-8+2x=69
Use the distributive property to multiply -2 by 4-x.
92+2x=69
Subtract 8 from 100 to get 92.
2x=69-92
Subtract 92 from both sides.
2x=-23
Subtract 92 from 69 to get -23.
x=\frac{-23}{2}
Divide both sides by 2.
x=-\frac{23}{2}
Fraction \frac{-23}{2} can be rewritten as -\frac{23}{2} by extracting the negative sign.
Examples
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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
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Limits
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