Question

solve for the value of y.
answer attempt 1 out of 2
y =

Explanation:

Step1: Sum of angles equals 90°

$(2y - 1) + (7y - 8) = 90$

Step2: Combine like terms

$9y - 9 = 90$

Step3: Solve for y

$9y = 99 \implies y = 11$

Answer:

11