Question

8,2+5+(−2,23t)=−7+8,2−2,33t.

Answer 1

$8,2+5+(-2,23t)=-7+8,2-2,33t\\5-2,23t=-7-2,33t\\-2,23x+2,33x = - 7-5\\0,1x=-12\\x= -120$