Question

Need help with problem number 2 measurement of angle (x or b)

Answer 1

SOLUTION

Given the question in the image, the following are the solutions step to answer the question.

STEP 1: Draw the image of the question

STEP 2: Solve for x

$\begin{gathered} (3x+6)+48=90---\text{Total angle in a right-angle} \\ By\text{ opening the bracket,} \\ 3x+6+48=90\Rightarrow3x+54=90 \\ \text{Subtract 54 from both sides} \\ 3x+54-54=90-54 \\ 3x=36 \\ \text{Divide both sides by 3} \\ \frac{3x}{3}=\frac{36}{3} \\ x=12 \end{gathered}$

Hence, the value of x in the given question is 12