Answer:
Hi there!
Your answer is:
r= r = 7 & 7/9ths OR roughly 7.78
Explanation:
69= 9r -3
+3
70 = 9r
/9
r = 7 & 7/9ths OR roughly 7.78
Hope this helps!
8 = r
69 = 9r -3
Add 3 to each side
69+3 = 9r -3+3
72 = 9r
Divide each side by 9
72 / 9 = 9r/9
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