Question

a) solutia ecuatiei x-1,4=3,2 este nr rational .......
b)soluitia ecuatiei x+2pe 5=5pe6 este numarul rational...
c)solutia ecuatiei Xx3pe 2 =7pe 5
va rog ajutatima urgent!!

Answer 1

a) x=3,2+1,4=4,6
b)x+2/5=5/6=> x+2=25/6
x=4+1/6-2=2+1/6
c)3x/2=7/5 =>3x=14/5 x=14/15

Answer 2

a)  x-1.4 = 3.2
     x = 3,2+1,4
     x = 4,6
     x = $\frac{46}{10}$

b)  $\frac{x+2}{5}$ = $\frac{5}{6}$
      6*(x+2) = 5*5
      6x + 12 = 25
      6x = 25-12
      6x = 13
      x = $\frac{13}{6}$

c)  $\frac{3x}{2}$ = $\frac{7}{5}$
     3x*5 = 7*2
     15x = 14
      x = $\frac{14}{15}$