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-3\left(-\left(-x\right)-y\right)-4\left(-\left(-\left(-x-k\right)\right)\right)
To find the opposite of -x+y, find the opposite of each term.
-3\left(-\left(-x\right)\right)+3y-4\left(-\left(-\left(-x-k\right)\right)\right)
Use the distributive property to multiply -3 by -\left(-x\right)-y.
3\left(-x\right)+3y-4\left(-\left(-\left(-x-k\right)\right)\right)
Multiply -3 and -1 to get 3.
3\left(-x\right)+3y-4\left(-\left(-\left(-x\right)-\left(-k\right)\right)\right)
To find the opposite of -x-k, find the opposite of each term.
3\left(-x\right)+3y-4\left(-\left(-\left(-x\right)+k\right)\right)
The opposite of -k is k.
3\left(-x\right)+3y-4\left(-\left(-\left(-x\right)\right)-k\right)
To find the opposite of -\left(-x\right)+k, find the opposite of each term.
-3x+3y-4\left(-\left(-\left(-1\right)x\right)-k\right)
Multiply 3 and -1 to get -3.
-3x+3y-4\left(-x-k\right)
Multiply -1 and -1 to get 1.
-3x+3y+4x+4k
Use the distributive property to multiply -4 by -x-k.
x+3y+4k
Combine -3x and 4x to get x.
-3\left(-\left(-x\right)-y\right)-4\left(-\left(-\left(-x-k\right)\right)\right)
To find the opposite of -x+y, find the opposite of each term.
-3\left(-\left(-x\right)\right)+3y-4\left(-\left(-\left(-x-k\right)\right)\right)
Use the distributive property to multiply -3 by -\left(-x\right)-y.
3\left(-x\right)+3y-4\left(-\left(-\left(-x-k\right)\right)\right)
Multiply -3 and -1 to get 3.
3\left(-x\right)+3y-4\left(-\left(-\left(-x\right)-\left(-k\right)\right)\right)
To find the opposite of -x-k, find the opposite of each term.
3\left(-x\right)+3y-4\left(-\left(-\left(-x\right)+k\right)\right)
The opposite of -k is k.
3\left(-x\right)+3y-4\left(-\left(-\left(-x\right)\right)-k\right)
To find the opposite of -\left(-x\right)+k, find the opposite of each term.
-3x+3y-4\left(-\left(-\left(-1\right)x\right)-k\right)
Multiply 3 and -1 to get -3.
-3x+3y-4\left(-x-k\right)
Multiply -1 and -1 to get 1.
-3x+3y+4x+4k
Use the distributive property to multiply -4 by -x-k.
x+3y+4k
Combine -3x and 4x to get x.