4x - 3 = 9
4x = 9 + 3
4x = 12
x = 3
hope that helps, God bless!
Can you give more information
2 + 3 + 4
2 + 4 + 3
4 + 3 + 2
4 + 2 + 3
3 + 4 + 2
3 + 2 + 4
Answer is 9.5 First find DC by doing the Pythagorean theorem
BC is 3 BD is 5
So 3^2+ DC= 5^2
9+____=25
So DC is 4 cuz 4times 4=16
Now add AD+DC=AC
5+4=9
So BC is 3 the bottom AC is 9
3^2+9^2= 9+81=90 the sq rt of 90 is 9.5