axjx70
Answered

At Westonci.ca, we connect you with the answers you need, thanks to our active and informed community. Get detailed and precise answers to your questions from a dedicated community of experts on our Q&A platform. Experience the ease of finding precise answers to your questions from a knowledgeable community of experts.

what is 4p + 5q = - 18 and 3p - 10q = 69 using elimination

Sagot :

luana
[tex] \left \{ {{4p+5q=-18\ |\cdot2} \atop {3p-10q=69}} \right. \\\\ \left \{ {{8p+10q=-36} \atop {3p-10q=69}} \right. \\+-----\\\\11p=33\ \ \ \ |:11\\p=3\\\\4\cdot3+5q=-18\\12+5q=-18\\5q=-18-12\\5q=-30\ \ \ \ \ \ |:5\\q=-6\\\\ \left \{ {{p=3} \atop {q=-6}} \right. [/tex]