Question

2x{5+3X[2+9x(5+3m)]=2008 dau coroana !

Answer 1

Răspuns:

2x{5+3X[2+9x(5+3m)]=2008

5+3·[2+9·(5+3m)=2008:2

3·[2+9·(5+3m)=1004-5

2+9·(5+3m)=999:3

9·(5+3m)=333-2

45+27m=331

27m=331-45

m=286:27

m=10,59

ceva nu ai scris corect

Answer 2

Ai greșeli în scrierea exercițiului. Consider că aceasta e cerința corectă: 2 × {5 + 3 × [2 + 3 × (2 + 3m)]} - 2 = 2000

$\bf 2 \cdot \{ 5 + 3 \cdot[ 2 + 3 \cdot( 2 + 3 m ) ] \} - 2 = 2 000$

$\bf 2 \cdot \{ 5 + 3 \cdot[ 2 + 3 \cdot( 2 + 3 m ) ] \} = 2 000 + 2$

$\bf 2 \cdot \{ 5 + 3 \cdot[ 2 + 3 \cdot( 2 + 3 m ) ] \} = 2002 \: \: \bigg|:2$

$\bf 5+ 3 \cdot[ 2 + 3 \cdot( 2 + 3 m ) ] = 1001$

$\bf 3 \cdot[ 2 + 3 \cdot( 2 + 3 m ) ] = 1001 - 5$

$\bf 3 \cdot[ 2 + 3 \cdot( 2 + 3 m ) ]= 996 \: \: \: \bigg|: 3$

$\bf2 + 3 \cdot( 2 + 3 m )=332$

$\bf 3 \cdot( 2 + 3 m )=332 - 2$

$\bf 3 \cdot( 2 + 3 m )=330 \: \: \: \bigg|: 3$

$\bf 2 + 3 m =110$

$\bf 3 m =110 - 2$

$\bf 3 m =108 \: \: \: \bigg|: 3$

$\red{ \boxed{\bf \: m =36 \: }}$

$= = pav38 = =$