Solve for x
x = \frac{9}{5} = 1\frac{4}{5} = 1.8
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5\times 2x+3=5x+12
Multiply both sides of the equation by 15, the least common multiple of 3,5.
10x+3=5x+12
Multiply 5 and 2 to get 10.
10x+3-5x=12
Subtract 5x from both sides.
5x+3=12
Combine 10x and -5x to get 5x.
5x=12-3
Subtract 3 from both sides.
5x=9
Subtract 3 from 12 to get 9.
x=\frac{9}{5}
Divide both sides by 5.
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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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