Solve for x
x=-2
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8x-4=-1+13x+7
Combine 7x and x to get 8x.
8x-4=6+13x
Add -1 and 7 to get 6.
8x-4-13x=6
Subtract 13x from both sides.
-5x-4=6
Combine 8x and -13x to get -5x.
-5x=6+4
Add 4 to both sides.
-5x=10
Add 6 and 4 to get 10.
x=\frac{10}{-5}
Divide both sides by -5.
x=-2
Divide 10 by -5 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 ) }
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Limits
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