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anyaivy44
21.10.2019 •
Mathematics
Two equations are given below:
a – 3b = 16
a = b – 2
what is the solution to the set of equations in the form (a, b)? (5 points)
(–2, –6)
(–7, –9)
(–11, –9)
(–12, –10)
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Ответ:
a - 3b = 16
b - 2 - 3b = 16
-2 - 2b = 16
-2b = 18
b = -9
Now substitute back into the equation
a = b - 2
a = -9 - 2
a = -11
Solution set in the form (a, b) is...
(-11, -9)
Ответ:
☁️ Answers ☁️
1. Y = 2x - 10
2. X = 5/3 - 7y/6
3. X = 17/5 + 16y/5
4. X = -5 - 3y
Hope it helps. (Sorry if I made any mistake)
Have a nice day!~  ̄▽ ̄❤️