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15-x supra 2 + 3x-1 supra 5 = 4

va roooog


Răspuns :

[tex]\frac{15-x}{2}^{(5}+\frac{3x-1}{5}^{(2}=4^{(10} \\\\ 5(15-x)+2(3x-1)=4*10 \\\\ 75-5x+6x-2=40 \\\\ 73+x=40 \\\\ x=40-73 \\\\ \boxed{x= -33}[/tex]
_15-x_  + _3x- 1_ = 4
    2              5

5(15 -x) + 2(3x - 1) = 40

75 -5x + 6x - 2= 40

73  + x= 40

x = 40 -73

x = -33