(added picture!) PLEASE PLEASE PLEASE HELP!!

Can someone please help me with a step by step of this problem ? I'll seriously appreciate it, and thank you so so so much in advance!!

DON'T ANSWER IF YOU'RE UNSURE!!! I need actual help, please don't just take my points. :c

(added picture!) PLEASE PLEASE PLEASE HELP!! Can someone please help me with a step by step of this problem ? I ll seriously appreciate it, and thank you so so class=