6x-15y=-63
-15x+15y=90
This is because you are multiplying the first equation by a constant of 3 and the second equation by 5 so that you can have -15y and +15y which will cancel each other out.

in short, we can change any percent formatted number to a decimal or fraction formatted one by simply dividing it by 100.
Answer: -7 -2
Step-by-step explanation:-7 + -2=9 -7×-2=14
Answer: 1.05500
Step-by-step explanation:
2 subtracted by 0.945 is 1.05500
<em>Your Answer: </em>A.) (2 , 5) <u>I also provided the steps.</u>
Hope this helps y'all :)