Answer:
0.36
Step-by-step explanation:
you add the probability's together
quite simple really. -3-
Answer:
x+2a=12+ax-6a
Step-by-step explanation:
collect liked terms:
x+2a=12+ax-6a
2a-ax+6a=12-x
factorize a on the left hand side:
a(2-x+6)=12-x
divide both sides by (2-x+6) :
a(2-x+6)/(2-x+6)= 12-x/(2-x+6)
a= 12-x
____
(2-x+6)
2 × 4 = 8. Well, in Algebra we don't use blank boxes, we use a letter. ... Instead of saying "obviouslyx=2", use this neat step-by-step approach: ... it to both sides. 4x=8 divide left and right by 4. Which is ... 1x = 2. Solved! x = 2 ... If we multiply by 3 we can cancel out the divide by 3 (because 3/3=1) ... 3 times xplus 9 is 45:.
Answer:
Check pdf
Step-by-step explanation:
Step-by-step explanation:
lets separate z from each equation
2z=x-2y-2
4z=5x+2y+2
5z=-5y
so
z=x/2-y-1
z=5x/4+y/2+1/2
z=-y
lets use the first and third equation
we have z=-y we replace this z at the first equation
-y=x/2-y-1 so x/2-1=0
x/2=1
x=2
now we replace z=-y and x=2 at the second equation so
-y=5*2/4+y/2+1/2
-y/2-y=5/2+1/2
-3y/2=6/2
-3y/2=3
-y/2=1
y=-2
we know that z=-y
so z =-(-2)=2
finaly we have that
x=2 ,y=-2 ,z=2
