Question

Cine ma poate ajuta,va rog frumos!

Answer 1

[tex]x=4+[ \frac{3*9+4}{9} ] + [ \frac{-8*5+2}{5} ] + [ 2.84] + [-5] + [ \frac{-2*7+1}{7} ] [/tex]

$x= 4 + [ \frac{31}{9} ] + [- \frac{38}{5} ] + [2.84] + [-5] + [- \frac{13}{7} ]$

$x = 4 + [3.44] + [-7.6] + [2.84] + [-5] + [-1.85]$

$x = 4+3-8+2-5-2 = \ \textgreater \ x = 7-8+2-5-2 =\ \textgreater \ x = -1-5$

x = -6
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rezolvare pt y:
{5.75} = 5.75-5=0.75
{3intregi7/8} = {3*8+7 / 8} = {31/8} = {3.875} = 3.875-3 = 0.875
{-2intregi3/4} = {-2*4+3/4} = {-5/4} = {-1.25} = -1.25+2=0.75
{-6intregi1/8} = {-6*8+1/8} =  {-47/8} = {-5.875} = -5.875+6=0.125
{7.25} = 7.25-7=0.25
{-8 intregi 1/4} = {-8*4+1/4}= {-31/4}= {-7.75} = -7.75+8=0.25
 y = 0.75+0.875+0.75+0.125+0.25+0.25
y=1.625+0.875+0.5
y=3
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rezolvare pt z:
{4.3}=4.3-4
{3intregi6/9}={3*9+6/9}={33/9}={3.66}=3.66-3=0.66
{-8intregi2/5}={-8*5+2/5}={-38/5}={-7.6}=-7.6+8=0.4
{-2.7}=-2.7+3=0.3
{-5intregi1/3}={-5*3+1/3}={-14/3}={-4.66}=-4.66+5=0.34
{5.6}={5.6-5}=0.6
z=0.3+0.66+0.4+0.3+0.34+0.6
z=2.6
**************

3x-4y+15z=3*(-6)-4*3+15*2.6=-18-12+39=-30+39=9