Respuesta :
Equation: 3x+9=42
3x=42-9=33
Answer: x=33/3=11
Hope this helps!!
3x=42-9=33
Answer: x=33/3=11
Hope this helps!!
_Award brainliest if helped!
Let Unknown number be X ,
42 = 9 + 3(X)
42-9 = 3X
33 = 3X
X = 11
The number is 11
Let Unknown number be X ,
42 = 9 + 3(X)
42-9 = 3X
33 = 3X
X = 11
The number is 11