Jelas x = r
Sehingga 3 ( 5 - r ) - 2 = 5 r -3
13 - 3 r = 5 r - 3
8 r = 16
r = 2
5 r = 10
5 r - 3 = 7.
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Jelas x = r
Sehingga 3 ( 5 - r ) - 2 = 5 r -3
13 - 3 r = 5 r - 3
8 r = 16
r = 2
5 r = 10
5 r - 3 = 7.
semoga membantu