Answer:
y = -7x + 17
Step-by-step explanation:
you want to isolate the 'y' variable, start by distributing -7 on the right side
y + 4 = -7x + 21
now subtract 4 from each side
y=mx + b y=-7x + 17
1550, 2760, 36840 that s all
5/4 or 1 1/5
remove the zeros and you get 5/4 or 1 1/5