Use BEDMAS:
B - Brackets
E - Exponents
D - Division
M - Multiplication
A - Addition
S - Subtraction
Answer:
n = 7
n = -3
Step-by-step explanation:
4n+6 = n²-15
4n = n² - 21
n² - 4n - 21 = 0
(n-7)(n+3) = 0
76%
× 100% = 76%