Номер 8. Решите уравнения. Created by Noah1111. matematika-ru

Номер 8. Решите уравнения...

andreevnaelina X*3=4 1/2
x*3=9/2
x=9/2*1/3
x=3/2
x= 1 1/2
x=1,5

y:5=1 2/5
y:5= 7/2
y= 7/2*5
y=35/2
y=17 1/2
y=17,5

z+5 1/3=6 1/2
z+16/3=13/2
z=13/2-16/3
z=13*3-16*2/6
z=39-32/6
z=7/6
z=1 1/6

1 1/2-t=5/6
3/2-t=5/6
-t=5/6-3/2
-t=5-3*3/6
-t=5-9/6
-t=-4/6
-t=-2/3
t=2/3

u+2u=5
3u=5
u=5/3
u=1 2/3

7v-5v=1
2v=1
v=1/2
v=0,5

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