5 is the answer
hope i helped
Answer:
- 7
Step-by-step explanation:
21 = - 4x - 7
- 4x - 7 = 21
- 4x = 21 + 7
- 4x = 28
x = 28 / - 4
x = - 7
Answer:
21.21
Step-by-step explanation:
length of arc= 135°÷360×2×π×r
take π=22/7
radius=18/2=9
135°÷360×2×22/7×9
using calculator= 21.21
X=is the number
We can sugget this equation:
8(x-3)=x+25
8x-24=x+25
8x-x=25+24
7x=49
x=49/7
x=7
answer: the number is 7.
