This is the answers from MathPapa
Answer:
Option A is correct .
Step-by-step explanation:
if in a question it is given that BC is equal to AB then only we can do like that...
Cross multiply the denominators by the numerators. In other words, 12 times 3 and 7 times x (x, being our missing number).
We end up with 36 and 7x.
Divide both sides by 7.
36/7x = 5.14
x = 5.14
Hope this helps!
Answer:
4(19x + 17)
Step-by-step explanation:
76x + 68 both numbers are divided by 4 so we fact out 4 and introduce the brackets : 4(19x + 17 )