Answer:
31
Step-by-step explanation:
Add those two angles together to get 180 degrees and then do some algebra
Nothing. they do not have a common factor
Answer:
B
Step-by-step explanation:
(-4-5)/(2-(-4))
= -9/6
= -3/2
hope this helped!
For solving these equation, it is important to isolate the variable to then solve it.
In this first equation,
3(4+x)=x+6
12+3x=x+6
12+2x=6
2x=-6
x=-3
to prove this, just substitute x value back into equation;
3(4-3)=-3+6
3(1)=3
3=3
Same for the next equations;
1+2x-x=x-5+x
1+x=2x-5
1=x-5
6=x
Then substitute this value back into equation;
1+2(6)-6=6-5+6
1+12-6= 12-5
7=7