16 (5x+4y)+12-50 y=4; x=5

Question

16 (5x+4y)+12-50 y=4; x=5

Answer 1

16 (5х + 4у)+12-50
16*5х +16*4у +12-50
80х +64у + 12-50
80*5 + 64*4 +12-50
400+256+12-50=618