Question

someone help me please

Answer 1

hey mate your answer is in the attachment

Answer 2

《integers 》AS WE KNOW (-) + (-) = +
AND (-) + (+) OR VICE-A-VERSA GIVES (-)
&(+) + (+) GIVES (+)

$1. \: \: 5x - (2x + 2y - z) \\ \: \: \: \: \: 5x - 2x - 2y + z \\ \: \: \: \: \: 3x - 2x + z$
$2. \: \: 7x - (4x - y - 2z + 1) \\ \: \: \: \: \: 7x - 4x + y + 2z - 1 \\ \: \: \: \: \: 3x + y + 2z - 1$
$hope \: this \: helps \: u \:$

:)Please mark it as brainlliest !