Question

(x + y - 2z) +( x + y + z) = ?

Answer 1

Answer:

hooo.............! sorry I know the answer but WIFI is not there

Answer 2

Step-by-step explanation:

$\red{\bf(x + y - 2z) +( x + y + z) = ? }\\ \\ \pink{\bf \implies \: x + y - 2z + x + y + z} \\ \\ \blue{ \boxed{\bf \implies \: 2x + 2y - z}}$