yoyo1542
24.11.2020 •
Mathematics
The sum of the ages of Quinn and Tiana is 117 years. 11 years ago, Quinn's age was 4 times Tiana's age. How old is Quinn now?
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Ответ:
The number(x)= -3
Step-by-step explanation:
Step 1- Subtract from both sides
4x+25= 13
-25 -25
Step 2- Divide from both sides
4x= -12
4 4
x=-3