Question Number 10091 by konen last updated on 23/Jan/17

((a−1)/(b−2)) =(2/3) ,((c+1)/(c−1))=(3/4) ⇒2a−c+10=?

Answered by ridwan balatif last updated on 24/Jan/17

((a−1)/(b−2))=(2/3) 3(a−1)=2(b−2) 3a−3=2b−4 3a−2b=−1 the data is not enough, i just can predict the value of a and b if we put a=−1 and b=−1 3(−1)−2(−1)=−1 −1=−1(true) ((c+1)/(c−1))=(3/4) 4c+4=3c−3 c=−7 so,a=−1,b=−1,c=−7 2a−c+10=2(−1)−(−7)+10=15