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a-b=3
--------(dijumlahkan)
2a=30
a=15
• a+B=27
a-b=3
------------(dikurangkan)
2b=24
B=12
•a×b =15×12=180(c)
y - x = 3
y-x = 3
27 - x -x = 3 ( dimasukkan yang diatas )
27 -2x = 3
27 -3 = 2x
24 = 2x
x = 24/2 = 12
y-x = 3
y - 12 = 3
y = 3 +12
y = 15
x dikali y = 15 dikali 12
= 180 (c)