First you subtract 5 from each side. so its 6x+5=29 -5 -5which then you get 6x=24. You then divide 6 from 24 and you get x=4
Answer:
The second one!! :)
Step-by-step explanation:
Zero because you combine 12z and 15z because they are like terms giving you 27z. The equation now looks like 27z-6=27z-5. Subtract 27z on both sides leaving you -6=-5 which is false. So the equation has 0 solutions.
Answer
Yes Cam's costs proportional to the number of votes cam receives.
Step-by-step explanation:
Let number of votes bought by Sam =x
Cost of each vote = $ 100
So, Cost of x votes = $ 100 x
Let cost of x votes =y
y=100x
2 is the lie and 1 and 3 are truths
Step-by-step explanation:
#1 : if you looking for x intercepts make y=0
0=2x^2+4x
0=2(x^2+2x)
Divide both sides by 2
0=x^2+2x
0=x(x+2)
Therefore x=0 or x=-2
1 is true
#2
We can sub in the value to see if it is true
2(-14,70)^2-42(-14.70)=1049,58
Therefore 2 is a lie
#3
we can solve
To find x we make y=0
0=3(x-5)^2-12
0=3(x^2-10x+25)-12
0=3x^2-30x+75-12
0=3x^2-30x+63
0=3(x^2-10x+21)
Divide both sides by 3
x^2-10x+21=0
Factorise
(x-7)(x-3)=0
Therefore x=7 or x=3
Therefore 3 is a truth