Tentukan nilai x , jika ( 2x + 1) + (2x+2) + (2x+3)+…+ (2x+50) = 4.275 .

2x X 50 + 1.275 = 4.275
100x + 1.275 = 4.275
100x = 4.275-1.275
100x/100 = 3000/100
x = 30

SEMOGA MEMBANTU ^^^^@