Answer:
88 percent
Step-by-step explanation:
Final price divided by initial price
Justify means plug answer in and verify
so distribute 8(3-7x)=24-56x
143=7+24-56x
143=31-56x
minus 31 both sides
112=-56x
divide both sides by -56
-2=x
justify
plug it back
143=7+8(3-7x)
143=7+8(3-7(-2))
143=7+8(3-(-14))
143=7+8(3+14)
143=7+8(17)
143=7+136
143=143
true
x=-2
155 is your answer lmk if you need anything else
Step-by-step explanation:
these are the functions
and the others are not a functions because the domain can't match to more than one
12x +6 = 18 - 48 - 9x
-9x. -9x
3x +6 =18-48
-6. -6
3x = 18 -48-6
3x = -36
/3. /3
X= -12
Answer x=-12