180:(Х-12)=20 (а+43)*19=797

Question

180:(Х-12)=20
(а+43)*19=797

Answer 1

180÷(Х-12)=20
х-12=9
х=9+12
х=21
(а+43)*19=797
а+43=797÷19
а+43=41,947
эм...