xTrippyBeach4201x
23.01.2021 •
Mathematics
4a -3 = 2a +7
what's a?
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Ответ:
a =5
Step-by-step explanation:
4a -3 = 2a +7
Subtract 2a from each side
4a-2a -3 = 2a-2a +7
2a-3 =7
Add 3 to each side
2a-3+3 = 7+3
2a=10
Divide each side by 2
2a/2 = 10/2
a =5
Ответ: