himpunan penyelesaian dari 3/10(x-10)-2/5(2x+15) a.x=42 b.x=-12 C.x=10 d.x=12 e.x=42
Matematika
nauta099
Pertanyaan
himpunan penyelesaian dari 3/10(x-10)-2/5(2x+15)
a.x=42
b.x=-12
C.x=10
d.x=12
e.x=42
a.x=42
b.x=-12
C.x=10
d.x=12
e.x=42
1 Jawaban
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1. Jawaban NagisaA7
3/10(x-10)-2/5(2x+15) = -30
3/10x-3-4/5x-6 = -30
3/10x-4/5x = 6+3-30
3-8/10x = -21
-5/10x = -21
-1/2x = -21
x = -21 / -1/2