Solve for x
x = -\frac{225}{31} = -7\frac{8}{31} \approx -7.258064516
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16x+15x+225=0
Calculate 4 to the power of 2 and get 16.
31x+225=0
Combine 16x and 15x to get 31x.
31x=-225
Subtract 225 from both sides. Anything subtracted from zero gives its negation.
x=\frac{-225}{31}
Divide both sides by 31.
x=-\frac{225}{31}
Fraction \frac{-225}{31} can be rewritten as -\frac{225}{31} 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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