Answer:
Step-by-step explanation:
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c. x=3
Given:
7x < 21
Divide both sides by 7
7x / 7 < 21 / 7
x < 21/7
x < 3
x = 3
Check:
7(3) < 21
21 = 21
1
point slope formula: y-y1=m(x-x1)
y-(3)=(x-(8))
y-3=x-2
y=x+1