Answer:
X = 7
Step-by-step explanation:
7 + 1 = 8
7 - 3 = 4
4 is half of 8
x = 7
To find the value of x we can use similarity ratio
3/6 = (x-3)/(x+1) cross multiply expressions
3x + 3 = 6x - 18
3 + 18 = 6x - 3x
21 = 3x divide both sides by 3
7 = x
