Find the soultion to each system by the addition(elimination) method.
4s-5t=18
6s + 10t=-8

Question

Find the soultion to each system by the addition(elimination) method. 
4s-5t=18
6s + 10t=-8

anonymous · Answer

multiply first equation by 2$$8s-10t=36$$
$$6s+10t=-8$$

anonymous · Answer

add to get $$14s=28$$
$$s=2$$

maddiie · Answer

5(6s)+5(10t)=5(-8)
30s+50t=-40

anonymous · Answer

(4s-5t=18 )*2 ---->8s-10t=36
6s + 10t=-8, then add
14s=28
s=2

4(2)-5t=18 
8-5t=18
-5t=18-8
-5t=10
t=-2

anonymous · Answer

now substitute back to find t

anonymous · Answer

(4s-5t=18)2
6s+10t=-8
____________

8s-10t=36
6s+10t=-8
____________
14s     = 28

s= 2

4(2)-5t=18
8-18=5t
-10=5t

t= -2

anonymous · Answer

$$ \int \sum 	ext{x} \partial{} $$

anonymous · Answer

i'mjk

anonymous · Answer

you ecin. hmm
you love calculus?

anonymous · Answer

ok what does this mean
The ratio of the radii of two circles at the centers of which two arcs of the same length subtended a angles of 60 degree and 70 degree is

anonymous · Answer

i wrote sex ...

amistre64 · Answer

blasphemy! ..... maybe lol

anonymous · Answer

sex?
that is bad

anonymous · Answer

we can use a formula there satellite

maddiie · Answer

Guys go chat on the group chat i'm trying to get help.

anonymous · Answer

(4s-5t=18 )*2 ---->8s-10t=36
6s + 10t=-8, then add
14s=28
s=2

4(2)-5t=18 
8-5t=18
-5t=18-8
-5t=10
t=-2  posted by pat18

anonymous · Answer

ecin?

maddiie · Answer

Ok i understood. I hate math

anonymous · Answer

hello

anonymous · Answer

i love math