Question

7x - 2x = 6^17 : 6^15 + 44 : 11

tìm x

Answer 1

7x-2x=6^17:6^15+44:11

=>2x=6^(17-15)+4

=>2x=6^2+4

=>2x=36+4

=>2x=40

=>x=40:2

=>x=20

Answer 2

5x=6^2+4

5x=40

x=40:5=8

Vậy x=8

Answer 3

7x - 2x = 6^17 : 6^15 + 44 : 11

5x         = 6^2 + 4

5x          = 36+4

5x            = 40

x              = 8