Answer:
x = 15
Step-by-step explanation:
Given
2 = - 
+ 
x
Multiply through by 4 to clear the fractions
8 = - 7 + x ( add 7 to both sides )
15 = x
Answer:
let the unit digit be x
and the tens digit be y
so x+y = 9 ---> y = 9-x
the number is 10y+x
the number reversed is 10x + y
3(10y+x) = 8(10x + y)
30y + 3x = 80x + 8y
22y = 77x
2y = 7x
2(9-x) = 7x
18 - 2x = 7x
18=9x
x=2
y=7
the number is 72
check:
number is 72
reverse is 27
is 3(72) = 8(27)
Answer:
Addition +
Step-by-step explanation:
You are correct because according to PEMDAS, you have to do what is inside the parentheses first, which just happens to be addition.
Answer:
but dude what to answer............
Since it says the sum of any number not one in specific then the value will be x, plus the sum of 7,
