Let the nuber be x
According to question
3(x +4) = 18+ x
3x+ 12=18+x
3x-x=18-12
2x = 6
x =6/2
x = 3
Answer:
f = 5/3
Step-by-step explanation:
3/4 f = 5/4
Multiply each side by 4/3 to isolate f
4/3 *3/4 f = 5/4 *4/3
area=(20 ×20)÷2=200 sq . units