There isnt a image of the shape
Isolate the y
add 7 to both sides
y - 7 = 21
y - 7 (+7) = 21 (+7)
y = 21 + 7
y = 28
28 is your answer
hope this helps
Step-by-step explanation:
9.1x−0.8=−1.71 = 251/910 pic for answering
The first one (18) is the answer