Solve for x
x=3
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2\times 6=5x-3
Multiply both sides of the equation by 8, the least common multiple of 4,8.
12=5x-3
Multiply 2 and 6 to get 12.
5x-3=12
Swap sides so that all variable terms are on the left hand side.
5x=12+3
Add 3 to both sides.
5x=15
Add 12 and 3 to get 15.
x=\frac{15}{5}
Divide both sides by 5.
x=3
Divide 15 by 5 to get 3.
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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
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
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