(4 1/3 * (-1) * 5) / 12 = -1.80555556
Look at deonomators
assuming that the deonomenators are 5x+15y and 2x+6y
find their LCM
factor
5x+15y=5(x+3y)
2x+6y=2(x+3y)
LCM=10(x+3y)=10x+30y
multiply 2/(5x+15y) by 2/2=4/(10x+30y)
multiply 1/(2x+6y) by 5/5=5/(10x+30y)
if we add them
9/(10x+30y)
Answer:
= -15x +20
Step-by-step explanation:
-5(3x- 4)
= -5×3x- 4×-5
= -15x +20
Okay, so we have 20x+5y=-15.
To find y, let's plug in 0 for x, that way we have 20(0)+5y=-15.
Now do 20(0) and we have the equation: 5y=-15
divide both sides by 5 and we get y=-3!
This is # 22. And the second picture would be # 23
