Answer:
[tex]x\text{ }=\text{ 21}[/tex]
Explanation:
Here, we want to get the value of x
Mathematically, when two angles are supplementary, they add up to be 180 degrees
Thus, we have it that:
[tex]\begin{gathered} 6(x+1)\text{ + 48 = 180} \\ 6x\text{ + 6 + 48 = 180} \\ 6x\text{ = 180-48-6} \\ 6x\text{ = 126} \\ x\text{ = }\frac{126}{6} \\ \\ x\text{ = 21} \end{gathered}[/tex]
