You're meant to make one side of the equation equal 0.
For example, the first problem is

+ 9k = -7
You'd add 7 to both sides, leaving you with

+ 9k +7 =0
And I assume you know how to factor??
Answer:
Seven million, four hundred and twenty-one thousand, two hundred and seventy-three
Step-by-step explanation:
7,421,273 in word form is <em>seven</em><em> </em><em>million</em><em>,</em><em> </em><em>four</em><em> </em><em>hundred</em><em> </em><em>and</em><em> </em><em>twenty-one</em><em> </em><em>thousand</em><em>,</em><em> </em><em>two</em><em> </em><em>hundred</em><em> </em><em>and</em><em> </em><em>seventy-three</em><em> </em>
<em>PLEASE DO</em><em> </em><em>MARK ME</em><em> </em><em>AS BRAINLIEST</em><em> </em><em>IF</em><em> </em><em>MY ANSWER</em><em> </em><em>IS HELPFUL</em><em> </em><em>;</em><em>)</em><em> </em>
Answer:
{x,y} = {3,1}
Step-by-step explanation:
visit this for more info;
https://www.tiger-algebra.com/drill/2x_y=7;x-y=2/
Answer:
-9/5; -1 4/5; -1.8
Step-by-step explanation:
Answer:
x=-149
Step-by-step explanation:
12+x=-137
12-12+x=-137 Subtract 12 on both sides
x=-149