Solve for E
E=-4
Solve for x (complex solution)
x\in \mathrm{C}
E=-4
Solve for x
x\in \mathrm{R}
E=-4
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E=-\left(-3x-x-2y+3\right)-\left(2x+y\right)-x-3+2-\left(x+y\right)
To find the opposite of 2y-3, find the opposite of each term.
E=3x-\left(-x\right)+2y-3-\left(2x+y\right)-x-3+2-\left(x+y\right)
To find the opposite of -3x-x-2y+3, find the opposite of each term.
E=3x-\left(-x\right)+2y-3-2x-y-x-3+2-\left(x+y\right)
To find the opposite of 2x+y, find the opposite of each term.
E=x-\left(-x\right)+2y-3-y-x-3+2-\left(x+y\right)
Combine 3x and -2x to get x.
E=x-\left(-x\right)+y-3-x-3+2-\left(x+y\right)
Combine 2y and -y to get y.
E=x-\left(-x\right)+y-6-x+2-\left(x+y\right)
Subtract 3 from -3 to get -6.
E=x-\left(-x\right)+y-4-x-\left(x+y\right)
Add -6 and 2 to get -4.
E=x-\left(-x\right)+y-4-x-x-y
To find the opposite of x+y, find the opposite of each term.
E=-\left(-x\right)+y-4-x-y
Combine x and -x to get 0.
E=-\left(-x\right)-4-x
Combine y and -y to get 0.
E=x-4-x
Multiply -1 and -1 to get 1.
E=-4
Combine x and -x to get 0.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
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
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}