Question

50 PCTE rezolvati in R ecuatia :
$2 \frac{3}{8} ( \frac{1}{3} -3x)+ \frac{5}{8} ( \frac{1}{3} -3x)=1$

Answer 1

Dam factor comun (1/3 -3x),

(1/3 -3x)[(8*2+3)/8 +5/8]=1

(1/3 -3x)(19+5)/8 =1

(1/3 -3x)*24/8=1

(1/3 -3x)*3=1

1-9x=1

9x=0

x=0