Solve for x
x=7
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4x-2+5x=61
Add 5x to both sides.
9x-2=61
Combine 4x and 5x to get 9x.
9x=61+2
Add 2 to both sides.
9x=63
Add 61 and 2 to get 63.
x=\frac{63}{9}
Divide both sides by 9.
x=7
Divide 63 by 9 to get 7.
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.
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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