5(2a-3)-6(3a-4)=5a-4
5(2a-3)-6(3a-4) = 5a-4
10a-15-18a+24 = 5a-4
-8a+9 = 5a-4
9+4 = 5a+8a
13a = 13 |:13
a = 1
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5(2a-3)-6(3a-4) = 5a-4
10a-15-18a+24 = 5a-4
-8a+9 = 5a-4
9+4 = 5a+8a
13a = 13 |:13
a = 1