Question

afla-l pe x.((2xx-1):11+5:5):10=1

Answer 1

[( 2 x - 1 ) : 11 + 5 : 5 ] : 10 = 1

( 2 x - 1 ) : 11 + 1 = 1 × 10

( 2 x - 1 ) : 11 = 10 - 1

2 x - 1 = 9 × 11

2 x = 99 + 1

2 x = 100

x = 100 : 2

x = 50

Answer 2

[(2x-1)÷11+5÷5]÷10=1
(2x-1)÷11+1=1×10
(2x-1)÷11+1=10
(2x-1)÷11=10-1
(2x-1)÷11=9
2x-1=9×11
2x-1=99
2x=99+1
2x=100
x=100÷2
x=50