yes it is true. the quantity of backlinks is doesn't matter. but the quality of backlinks is matter. if you make 10 quality backlinks then it is 1000* better than those low quality backlinks.
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so that mean if you crated backlinks on high quality and high page rank website then you will rank easily so here i will tell you the method that how can you get amazing backlinks.
first you need to gram some expired tumblr which have high authority so before your grab it you need to check the authority of your tumblr blogs which you will grab.
for grab expired tumblr you need to download tumblr hunter and that software you will get from google.
after that just create fresh tumblr account and create web 2.0 on that expired username which you have grabbed from tumblr hunter.
and then write high quality article and place the link with anchor but make sure you have added relevant article.
so by this lesson you will easily rank the article if you have done it correctly.