Question

va roggggg
Ex 22
Dau coroana
E urgent ​

Answer 1

Răspuns:

Explicație pas cu pas:

a) x+3=a   x=1,5           a=1,5+3=4,5

b)a=x/2-1=2/3×1/2-1=1/3-1(1-3).=-2/3

c)a=2/3×3/5-1/2=2/5-1/2=(4-5)/10=-1/10=-0,1

d)x/5-1/5=2a/3         10/3×1/5-1/5=1/5(10/3-1)=(10-3)/15=-7/15

-7/15=2a/3        -7/5=2a          a=-7/10=-0,7