What do you understand by pollination ?​

the bees and pollution

Explanation:

bees collect nectar makes it to pollen then we make honey and pollution is made by gas everywhere and dirty things

its the tranfer of pollen grain through different cycles to the anther and stigma of a flower

try using substitution:

x + y - 6 = x - y. (i'm not giving you the exact answer). since 0 = x - y, then sub 0 in the equation with x - y. combine your like terms, and then use inverse operations, and you'll have your answer.

: -)