1/7*(4/3*(5+x-1/2)+6)=2
4/3*(5+x-1/2)+6=2/1:1/7
4/3*(5+x-1/2)+6=2/1×7/1
4/3*(5+x-1/2)+6=14
4/3×(2×5-1 totul supra/2 +x)+6=14
4/3×(9/2 +x)+6=14
4/3×(9/2 +x)=14-6
4/3×(9/2 +x)=8
9/2+x=8/1:4/3
9/2+x=8/1×3/4
9/2+x=2×3 totul supra/1×2
9/2+x=6/2
x=6/2 -9/2
x= -3/2
Răspunsuri la întrebare
Răspuns:
Explicație pas cu pas:
5 + ( x - 1 ) / 2 = ( 10 + x - 1 ) / 2 → paranteza rotunda pentru ( x - 1 ) / 2
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1 / 7 × [ ( 4 / 3 ) × ( 10 + x - 1 ) / 2 + 6 ] = 2
( 4 / 3 ) × ( 10 + x - 1 ) / 2 + 6 = 2 : ( 1 / 7 ) = 2 × 7 = 14
( 4 / 3 ) × ( 10 + x - 1 ) / 2 = 14 - 6
( 4 / 3 ) × ( 10 + x - 1 ) / 2 = 8
( 10 + x - 1 ) / 2 = 8 : ( 4 / 3 ) = 8 × ( 3 / 4 ) = 6
10 + x - 1 = 2 × 6
10 + x - 1 = 12
10 + x = 12 + 1
10 + x = 13
x = 13 - 10
x = 3
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Daca x NU este supra 2, atunci solutia este:
1 / 7 × [ 4 / 3 × ( 5 + x - 1 / 2 ) + 6 ] = 2
( 4 / 3 ) × ( 10 / 2 + 2 x / 2 - 1 / 2 ) + 6 = 2 : 1 / 7 = 2 × 7 = 14
( 4 / 3 ) × ( 10 / 2 + 2 x / 2 - 1 / 2 = 14 - 6 = 8
( 10 + 2 x - 1 ) / 2 = 8 : ( 4 / 3 ) = 8 × ( 3 / 4 ) = 6
10 + 2 x - 1 = 2 × 6
2 x = 12 + 1 - 10
2 x = 3
x = 3 / 2
Răspuns:
Explicație pas cu pas:
1 / 7 × [ ( 4 / 3 ) × ( 10 + x - 1 ) / 2 + 6 ] = 2
( 4 / 3 ) × ( 10 + x - 1 ) / 2 + 6 = 2 : ( 1 / 7 ) = 2 × 7 = 14
( 4 / 3 ) × ( 10 + x - 1 ) / 2 = 14 - 6
( 4 / 3 ) × ( 10 + x - 1 ) / 2 = 8
( 10 + x - 1 ) / 2 = 8 : ( 4 / 3 ) = 8 × ( 3 / 4 ) = 6
10 + x - 1 = 2 × 6
10 + x - 1 = 12
10 + x = 12 + 1
10 + x = 13
x = 13 - 10
x = 3