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5x+10=50
5x=40
x=8
bilangan kedua x+1
8+1=9
bilangan ketiga x+2
8+2=10
9×10= 90
5x + (1+2+3+4) = 50
5x = 50 - 10
5x = 40
x = 40: 5
x = 8
bilangan kedua (x+1) = 8 + 1 = 9
bilangan ketiga (x+2) = 8+ 2 = 10
9 x 10 = 90
maaf kalo salah