Question

Subtract ( - 2x - y + 5z) from the sum of ( - 4- 3y) , ( 2+ 5x - 7z) and ( x + 5y+4z +2 )​

Answer 1

SolutioN :-

$\sf( - 2x - y + 5z) \: from \: the \: sum \: of \\ \sf ( - 4 - 3y),(2 + 5x - 7z) \: and \: (x + 5y + 4z + 2)$

$\sf( - 4 - 3y) + (2 + 5x - 7z) + (x + 5y + 4z + 2) - ( - 2x - y + 5z) \\ \\ \sf \bold{ = - 4 - 3y + 2 + 5x - 7z + x + 5y + 4z + 2 + 2x + y - 5z } \\ \\ \sf \bold{ = - 4 + 2 + 2 - 3y + 5y + y + 5x + x + 2x - 7z + 4z - 5z} \\ \\ \sf \bold{ = \cancel{- 2 } \: \cancel{ + \: 2} + 2y + y + 6x + 2x - 3z - 5z} \\ \\ \sf \huge \pink{\bold { = 3y + 8x - 8z}}$

Answer 2

$\huge{\tt{\underline{\purple{Aɳʂɯҽɾ}}}}$

$( - 4 - 3y) + (2 + 5x - 7z) + (x + 5y + 4z + 2) - ( - 2x - y + 5z)$

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

$= 8x + 3y - 8z$