Toán Lớp 6: A) 5.(x-9)=350 B) (2x+2 mũ 5) . 8 mũ 24= 8 mũ 26

Question

Toán Lớp 6:  A) 5.(x-9)=350                                                                                B) (2x+2 mũ 5) . 8 mũ 24= 8 mũ 26

minhtamnguyet88 · Answer

a) 5.( x - 9 ) = 350        x - 9   = 350 : 5        x - 9   = 70   => x        = 70 + 9   => x        = 79   Vậy x = 79   b) ( 2x + 2^5 ) . 8^24 = 8^26        2x + 2^5                = 8^26 : 8^24        2x + 2^5                = 8^2        2x + 2^5                = 64        2x + 32                  = 64        2x                           = 64 - 32   => 2x                          = 32   => x                            = 16   Vậy x = 16

hiennhi98 · Answer

a) 5.(x-9)= 350   x-9= 350:5   x-9= 70   x= 70+9   x= 79   b) (2x+2$^{5}$ ). 8$^{24}$ = 8$^{26}$    2x+32 = 8$^{26}$ : 8$^{24}$   2x+32= 8$^{26-24}$    2x+32=8&sup2;   2x+32= 64   2x= 64-32   2x= 32   x= 32:2   x= 16   @Đần