Answer:
m=-2
Step-by-step explanation:
7(m+5)=21
m+5=21/7
m+5=3
m=3-5
m=-2
16/99
8/9
2/9
do the last three have a decimal in the start?
8.5? Give that a try!:)
What I did was I took a piece of paper, and listen those numbers from least to greatest, then I scratched off one number per side, till I got to the middle. From there, I added 8 and 9, the divided by 2. There, I got 8.5
90 divided by 2= 45 so x=45
2•45=90
So, for the next one y=60 because 90+90=180
3•60-2•45=90
