Answer:
The number is 19
Step-by-step explanation:
7 less than a number = x - 7
2x - x - 7 = 12
Subtract x from 2x
x - 7 = 12
Add 7 to both sides of the equation
x = 19
The number is 19
Hope this helps :)
The answer is B because 4 X 7 is 28 so 9 times 7 is 63
1/2+1/4= 2/4+1/4= 3/4 or .75
Then,
3/4x=16
(3/4x)4/3=(16)4/3 *multiply by the reciprocal everytime you want to isolate x with a fraction\
x= 12
Answer:
C. -1
Step-by-step explanation:
I calculated it logically
To find the perimeter you have to combine like terms. 8x + 5x - 6x is 7x and 6 - 5 + 12 is 13 so the perimeter of the triangle is 7x + 13
