Question

if A =3x+5y-7z , B=2x-6y+7z and C=5x+y+2z then A+B+C =

Answer 1

Answer:

answer for the given problem is given

Answer 2

$Given \: A = 3x+5y-7z , \:B=2x-6y+7z \:and$

$C=5x+y+2z$

$\red{ Value \:of \: A + B + C }$

$= 3x + 5y - 7z + 2x - 6y + 7z + 5x + y + 2z$

$= 3x + 2x + 5x + 5y - 6y + y -7z + 7z + 2z$

$= ( 3+2+5)x + ( 5-6+1)y + (-7+7+2)z$

$= 10x + ( -1 + 1)y + 2z$

$= 10x + 0\times y + 2z$

$= 10x + 2z$

Therefore.,

$\red{ Value \:of \: A + B + C }$

$\green { = 10x + 2z}$

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