The interior angles of a triangle are
(
5
x
+
3
y
)
∘
,
(
3
x
+
20
)
∘
,
and
(
10
y
+
30
)
∘
(5x+3y)∘,(3x+20)∘, and (10y+30)∘
, where
x
x
and
y
y
are positive integers. what is the value of
x
+
y
x+y
?

24/56=hx^7

step-by-step explanation:

{x = -1/2 ,   y = -1

step-by-step explanation:

solve the following system:

{2 x + y = -2

{10 x - 3 y = -2

in the first equation, look to solve for y:

{2 x + y = -2

{10 x - 3 y = -2

subtract 2 x from both sides:

{y = -2 x - 2

{10 x - 3 y = -2

substitute y = -2 x - 2 into the second equation:

{y = -2 x - 2

{10 x - 3 (-2 x - 2) = -2

10 x - 3 (-2 x - 2) = (6 x + 6) + 10 x = 16 x + 6:

{y = -2 x - 2

{16 x + 6 = -2

in the second equation, look to solve for x:

{y = -2 x - 2

{16 x + 6 = -2

subtract 6 from both sides:

{y = -2 x - 2

{16 x = -8

divide both sides by 16:

{y = -2 x - 2

{x = -1/2

substitute x = -1/2 into the first equation:

{y = -1

{x = -1/2

collect results in alphabetical order:

answer:   {x = -1/2 ,   y = -1

where's the diagram?

step-by-step explanation:

4+4+2x

or

2x+8

step-by-step explanation: