Question

look at the diagram. which equation can be used to solve for x? 9x - 40 = 90 9x - 36 = 90 9x + 40 = 90 9x + 36 = 90 solve for x. x =

Explanation:

Step1: Identify angle - sum relationship

Since the two non - right angles in the right - angled corner add up to 90 degrees, we have the equation $(9x - 2)+38=90$.

Step2: Simplify the left - hand side of the equation

Combine like terms: $9x+( - 2 + 38)=90$, which simplifies to $9x + 36=90$.

Step3: Solve for x

Subtract 36 from both sides of the equation: $9x+36 - 36=90 - 36$, so $9x=54$. Then divide both sides by 9: $x=\frac{54}{9}=6$.

Answer:

The equation is $9x + 36 = 90$ and $x = 6$