varoggg ex 8 punctul a


Varoggg Ex 8 Punctul A class=

Răspuns :

a) (3x+10)×6=(5x-8)×11

18x+60=55x-88

18x-55x=-88-60

-37x=-148 (inmultim relatia cu -1)

37x=148

x=4

Sper ca te-am ajutat!


[tex] \frac{3x + 10}{5x - 8} = \frac{11}{6} \\ \\ 3x + 10 = \frac{11}{6}(5x - 8) \\ \\ 3x + 10 = \frac{11(5x - 8)}{6} \\ \\ 18x + 60 = 11(5x - 8) \\ \\ 18x + 60 = 55x - 88 \\ \\ 60 = 55x - 88 - 18x \\ \\ 60 = 37x - 88 \\ \\ 60 + 88 = 37x \\ \\ 148 = 37x \\ \\ \frac{148}{37} = x \\ \\ 4 = x \\ \\ x = 4[/tex]