Solve for x
x=\frac{2}{3}\approx 0.666666667
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2\left(x+3\right)\times \frac{1}{2}-2\times 3=5+2\left(x+3\right)\left(-1\right)
Variable x cannot be equal to -3 since division by zero is not defined. Multiply both sides of the equation by 2\left(x+3\right), the least common multiple of 2,x+3,2\left(x+3\right).
\left(2x+6\right)\times \frac{1}{2}-2\times 3=5+2\left(x+3\right)\left(-1\right)
Use the distributive property to multiply 2 by x+3.
x+3-2\times 3=5+2\left(x+3\right)\left(-1\right)
Use the distributive property to multiply 2x+6 by \frac{1}{2}.
x+3-6=5+2\left(x+3\right)\left(-1\right)
Multiply -2 and 3 to get -6.
x-3=5+2\left(x+3\right)\left(-1\right)
Subtract 6 from 3 to get -3.
x-3=5-2\left(x+3\right)
Multiply 2 and -1 to get -2.
x-3=5-2x-6
Use the distributive property to multiply -2 by x+3.
x-3=-1-2x
Subtract 6 from 5 to get -1.
x-3+2x=-1
Add 2x to both sides.
3x-3=-1
Combine x and 2x to get 3x.
3x=-1+3
Add 3 to both sides.
3x=2
Add -1 and 3 to get 2.
x=\frac{2}{3}
Divide both sides by 3.
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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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