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3y+7y_{4}-5
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3y+7y_{4}-5
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3y_{4}-2y_{2}+3y-2-\left(-4y_{4}\right)-\left(-2y_{2}\right)-3
To find the opposite of -4y_{4}-2y_{2}+3, find the opposite of each term.
3y_{4}-2y_{2}+3y-2+4y_{4}-\left(-2y_{2}\right)-3
The opposite of -4y_{4} is 4y_{4}.
3y_{4}-2y_{2}+3y-2+4y_{4}+2y_{2}-3
The opposite of -2y_{2} is 2y_{2}.
7y_{4}-2y_{2}+3y-2+2y_{2}-3
Combine 3y_{4} and 4y_{4} to get 7y_{4}.
7y_{4}+3y-2-3
Combine -2y_{2} and 2y_{2} to get 0.
7y_{4}+3y-5
Subtract 3 from -2 to get -5.
3y_{4}-2y_{2}+3y-2-\left(-4y_{4}\right)-\left(-2y_{2}\right)-3
To find the opposite of -4y_{4}-2y_{2}+3, find the opposite of each term.
3y_{4}-2y_{2}+3y-2+4y_{4}-\left(-2y_{2}\right)-3
The opposite of -4y_{4} is 4y_{4}.
3y_{4}-2y_{2}+3y-2+4y_{4}+2y_{2}-3
The opposite of -2y_{2} is 2y_{2}.
7y_{4}-2y_{2}+3y-2+2y_{2}-3
Combine 3y_{4} and 4y_{4} to get 7y_{4}.
7y_{4}+3y-2-3
Combine -2y_{2} and 2y_{2} to get 0.
7y_{4}+3y-5
Subtract 3 from -2 to get -5.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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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
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}