Hey, i think i have the right answer too this question but can you me out on this one.

Add the numbers with the same variable, so I think it is x+2x+3x which equals 6x.

Or it could be you are trying to find x that equals up to a certain angle. I don't know...

Hope this helps, have a good day. c;

step-by-step explanation:

ok so im not 100% sure but you would start by adding 5.1t and 1.9t beacuse they have the same variable. that is 7t.   then add -3.6 + 1.2 which is -2.4

so then keep that as -2.4 + 7t. i apologize if this is incorrect. best luck on your test < 3