Answer:
c) x = 24
d) x = -5
Step-by-step explanation:
c) Since they have the same base of 5 so
x + (-4) + (-8) = 12
x - 4 - 8 = 12
x - 12 = 12
x = 24
d) Since they have the same base of 2 so
x + 2 + 7 = 4
x + 9 = 4
x = 4 - 9
x = -5
Answer:X=-5
