if the '7t' is supposed to be '7y', then the answer is below (4y+8)-(7y-12)=11 distribute the negative into the second parenthesis 4y+8-7y+12=11 combine like terms -3y+20=11 subtract the 20 from both sides -3y=-9 divide by -3 on both sides y=3
if it is supposed to be '7t', I'm not sure if there's enough information
