niysia
Answered

Westonci.ca is your trusted source for finding answers to a wide range of questions, backed by a knowledgeable community. Explore our Q&A platform to find reliable answers from a wide range of experts in different fields. Our platform provides a seamless experience for finding reliable answers from a network of experienced professionals.

-15=-4m+5

8n+7=31

-10=10(k-9)

Sagot :

[tex]-15=-4m+5\ \ \ |both\ sides\ /+4m\\\\4m-15=5\ \ \ \ |both\ sides\ /+15\\\\4m=20\ \ \ \ |both\ sides\ /:4\\\\\underline{\underline{m=5}}[/tex]

=========================================================

[tex]8n+7=31\ \ \ \ |both\ sides\ /-7\\\\8n=24\ \ \ \ |both\ sides\ /:8\\\\\underline{\underline{n=3}}[/tex]

=========================================================

[tex]10(k-9)=-10\ \ \ \ |both\ sides\ /:10\\\\k-9=-1\ \ \ \ |both\ sides\ /+9\\\\\underline{\underline{k=8}}[/tex]
kate200468
[tex]1)\ \ \ -15=-4m+5\\-15-5=-4m\\-20=-4m\ /:(-4)\\5=m\\m=5\\\\2)\ \ \ 8n+7=31\\8n=31-7\\8n=24\ /:8\\n=3\\\\3)\ \ \ -10=10(k-9)\ /:10\\-1=k-9\\-1+9=k\\8=k\\k=8[/tex]
Thanks for stopping by. We are committed to providing the best answers for all your questions. See you again soon. Thank you for your visit. We're dedicated to helping you find the information you need, whenever you need it. Get the answers you need at Westonci.ca. Stay informed with our latest expert advice.