Question

<p>dada a equação 6x-y=42,encontre as soluçoes, considerando:</p>
<p>a-x=8         </p>
<p>b-y=0       </p>
<p>  </p>y=30

Answer 1

6x-y=6x-30=42
6x=42+30=72
x=72/6=12