Solve for x
x=-2
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16+x=-6x-x
Combine 3x and -2x to get x.
16+x=-7x
Combine -6x and -x to get -7x.
16+x+7x=0
Add 7x to both sides.
16+8x=0
Combine x and 7x to get 8x.
8x=-16
Subtract 16 from both sides. Anything subtracted from zero gives its negation.
x=\frac{-16}{8}
Divide both sides by 8.
x=-2
Divide -16 by 8 to get -2.
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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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