Answer:
a/ac + 2b
Step-by-step explanation:
2a - b = ac + 3b
2a = ac +4b
2a/ac+4b = a/ac + 2b
Answer: 
Step-by-step explanation:
Opposite angles of a cyclic quadrilateral are supplementary, so:

This means that 
It’s the last one: 2x+1=-x+7
Remember, you can do anything to an equation as long as you do it to both sides
and when multiply or divide by a negative in inequalities, flip the direction of the sign
12x-39<9
add 39 to both sides
12x<48
divde bothh sides by 12
x<4
-4x+3<-6
minus 3 both sides
-4x<-9
times both sides by -1 and flip sign
4x>9
divide both sides by 4
x>9/4
Answer:
see below
Step-by-step explanation:
The formula for slope is
m = (y2-y1)/(x2-x1)
The person who tried to solve the problem did
Subtracted the x's over the y's instead of the y's over the x's
It should be (0-3)/(-4 -2)
-3/-6