PLSV
5(2x - 3) + 7 = 3(4x + 2) - 6
10x - 15 + 7 = 12x + 6 - 6
12x - 10x = -8
2x = -8
x = -4
x = a = -4
Sehingga :
→ 2a - 9
→ 2(-4) - 9
→ -8 - 9
→ -17
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PLSV
5(2x - 3) + 7 = 3(4x + 2) - 6
10x - 15 + 7 = 12x + 6 - 6
12x - 10x = -8
2x = -8
x = -4
x = a = -4
Sehingga :
→ 2a - 9
→ 2(-4) - 9
→ -8 - 9
→ -17