emmacox069
04.09.2020 •
Mathematics
What is the missing value of a=3 b=5 c=?
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Ответ:
clearify your question
Step-by-step explanation:
Ответ:
a = 7 and c = 12
Step-by-step explanation:
Set up 2 equations and use substitution:
4a + 2c = 52
12a + 4c = 132
In the first equation, c = 26 - 2a
We can plug that into the second equation to solve for a.
12a + 4(26 - 2a) = 132
a = 7
Plug a back in to either original equation to solve for c:
4(7) + 2c = 52
c = 12