Question

what should be subtracted from 3x-5y+11z to obtain -7x+8y-2z​

Answer 1

Answer:

let your second no . be a

3x -5y+11z - a = -7x +8y -2z

-a = -7x+8y-2z - 3x+5y-11z

.

-a = -10 x +13y -13z

a = 10 x - 13y +13z ...

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Answer 2

Answer:

(-7x+8y-2z)+(3x-5y+11z) =(-4x+3y+9z)