Solve for x
x=8
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7x-5x+35=8x-13
Use the distributive property to multiply -5 by x-7.
2x+35=8x-13
Combine 7x and -5x to get 2x.
2x+35-8x=-13
Subtract 8x from both sides.
-6x+35=-13
Combine 2x and -8x to get -6x.
-6x=-13-35
Subtract 35 from both sides.
-6x=-48
Subtract 35 from -13 to get -48.
x=\frac{-48}{-6}
Divide both sides by -6.
x=8
Divide -48 by -6 to get 8.
Examples
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y = 3x + 4
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Matrix
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
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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