Question

Determinați numărul x din egalitatea 2+462:[10•(x+20):2+1]=4 va rog frumos!!

Answer 1

2 + 462 : [ 10 × ( x + 20 ) : 2 + 1 ] = 4

462 : [ 10 × ( x + 20 ) : 2 + 1 ] = 4 - 2

462 : [ 10 × ( x + 20 ) : 2 + 1 ] = 2

10 × ( x + 20 ) : 2 + 1 = 462 : 2

10 × ( x + 20 ) : 2 + 1 = 231

10 × ( x + 20 ) : 2 = 231 - 1

10 × ( x + 20 ) : 2 = 230

10 × ( x + 20 ) = 230 × 2

10 × ( x + 20 ) = 460

x + 20 = 460 : 10

x + 20 = 46

x = 46 - 20

x = 26