Question

Tìm x biết: ( x + 2 ) + ( x + 4 ) + ( x + 6 ) + ( x + 8 ) +  ... + ( x + 50 ) + ( x + 52 ) = 1092

Answer 1

Có (x+x+x+...+x) có (52-2):2+1=26(x)

Có (2+4+6+8+..+52) có tổng là 702

Có biểu thức 26*x+702=1092

                    26*x=1092-702

                    26*x=390

                    x=390/26

                     x=15

                                       k mình nha

Answer 2

X=15 mình chắc chắn 1000000%

Answer 3

Từ 2 đến 50 có:   (52 - 2) : 2 + 1 = 26 (số hạng)

Ta có:   (x + x + ... + x + x + x) + (2 + 4 + ... + 48 + 50 + 52) = 1092

                   \(\left(x\times26\right)+\left[\left(2+52\right)\times\left(26\div2\right)\right]\)\(=1092\)

                                                           \(x\times26+702=1092\)    

                                                                        \(x\times26=1092-702\)

                                                                        \(x\times26=390\)

                                                                                   \(x=390\div26\)

                                                                                   \(x=15\)

Answer 4

15000chia1000

Answer 5

X= 15 minh chac chan 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000%

Answer 6

x=15

10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000

Answer 7

702 bạn tính như thế nào vậy

Answer 8

cam on ban vo thanh dat

Answer 9

x=15

chúc bạn hok tốt nhé !