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Nataliabaluta039
a fost răspuns

află numărul necunoscut:
(88-70:v)×10=180
3×(99+x)-100=275
{[(3×y+5)×3+5]×3+5}×3+5=281
{[1545:(201-2×z)+95]×3-18}:2=26 ​
DAU 100 DE PUNCTEE

Răspuns :

Aurelcraciun59

Răspuns:

Explicație pas cu pas:

(88-70:V)*10 =180

88-70:V=180:10

88-70:V=18

70:v= 88-18

70:V=70

V= 70:70

V=1

-

3*(99+x) -100=275

3*(99+x) =275+100

3*(99+x)=375

99+x= 375:3

99+x= 125

x= 125-99

x= 26

-

{[( 3*y+5)*3+5]*3+5=281-5

{[(3*y+5)*3+5]*3=276

[(3*y+5)*3+5=276:3

[(3*y+5)*3+5=92

(3*y+5)*3=92-5

(3*y+5)*3=87

(3*y+5)=87:3

(3*y+5)=29

3*y=29-5

3*y=24

y= 24:3

y=8

-

-

{[1545 : (201-2*z)+95]*3-18} =26*12

[1545:(201-2*z)+95 ] *3-18=312

[1545 :( 201-2*z )+95 ] *3=312+18

[1545 : (201-2*z)+95] *3=330

[1545:(201-2*z)+95]=330:3

1545:(201-2*z)+95=110

1545 :(201-2*z)=110-95

1545:(201-2*z) = 15

201-2z= 1545:15

201-2z= 103

2z=201-103

2z= 98

z= 98:2

z= 49

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