Answer:
Hello! answer: x = 12
Step-by-step explanation:
This is a complementary angle meaning it will add up to 90 degrees 12 + 42 = 54 3 × 12 = 36
54 + 36 = 90 therefore x = 12 HOPE THAT HELPS!
97
42 is your answer if there is -5x
when x=-4
x²-5x+6=(-4)²-5×-4+6=16+20+6=42
