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Verified answer
Bab AljabarMatematika SMP Kelas VII
(-2 + 3w)/5 = (10 + 4w)/7
**dikali 35**
7 (-2 + 3w) = 5 (10 + 4w)
-14 + 21w = 50 + 20w
21 w - 20 = 50 + 14
w = 64