Answer:
Step-by-step explanation:
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Answer:
Step-by-step explanation:
- My age = m
- Sister's age = s
<u>Equations:</u>
<u>Substitute s into first equation and solve for m:</u>
- m + 2m - 3 = 30
- 3m - 3 = 30
- 3m = 33
- m = 11
<u>Find s:</u>
- s = 2*11 - 3 = 22 - 3 = 19
Answer:
The answer is =(a+b+3ab)(a+b-3ab)
Answer:
d
Step-by-step explanation:
