7/10 is the simplest form of the fraction when you multiply (3/5) by (7/6)
Note:xy means x times y and x(y) means the same thing
so
first we get rid of square root then
make the equation equal to zero becaues if
xy=0 then x or/and y=0
squareroot(y-1)+3=y
isolate the squareroot
subtrac 3 from boht sides
squareroot(y-1)=y-3
square both sides (since they are equal, you should be able to square both sides and still make it true)
(squareroot(y-1))^2=(y-3)^2
(y-1)=(y-3)(y-3)
y-1=y^2-6y+9
subtrac y from both sides
-1=y^2-7y+9
add 1 to both sides
0=y^2-7y+10
find what two number multiply to make 10 and add to get -7
the answer is -2 and -5
0=(y-5)(y-2)
therfore
y-5=0
and/or
y-2=0
therefor
y=5 or/and 2 might work
let's try out 2
square root(2-1)+3=2
square root(1)+3=2
1+3=2
false
so 2 doesn't work
let's try 5
squareroot(5-1)+3=5
squareroot(4)+3=5
2+3=5
5=5
true
y=5
Answer:
12x-2
Step-by-step explanation:
You need to add 5x+1 and 7x-3.
5x+1+7x-3.
We need to organize this into common terms.
5x+7x+1-3
Now we simplify.
12x-2
That is the final answer!!
Hope this helped!!!! :D
Answer:1,500
Step-by-step explanation:
X, y - the numbers
The numbers add to 9 and multiply to -70.
The numbers are
-5 and 14.
