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Zina [86]
3 years ago
15

Solve this equation for a. 10a + 3 + 2a = 39

Mathematics
2 answers:
cestrela7 [59]3 years ago
5 0
10a+3+2a=39
First simplify
12a+3=39
Then subtract 3 from both sides
12a=36
Then divide both sides by 12
a=3
aliina [53]3 years ago
4 0
10a+3+2a=39
12a+3=39
      -3   -3
12a=36
/12   /12
a=3
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