Question

2x + y = -2
x + y = 5

The y-coordinate of the solution to the system shown is _____.

a.12
b.-12
c.-7
d.7

Answer 1

Since we want to find the y-coordinate, let's solve one of the equations for 'x' and plug it into the other equation so we're left only with the y

And then we can solve for y

x + y = 5

What do you get if you solve it for x?

Just subtract 'y' on both sides, what do you get?

Answer 2

i dont know scincerily i am sorry i am not mentally stable so studying was not on my agenda🙃

Answer 3

\(\color{#0cbb34}{\text{Originally Posted by}}\) @meganmoney543
i dont know scincerily i am sorry i am not mentally stable so studying was not on my agenda🙃
\(\color{#0cbb34}{\text{End of Quote}}\)

just subtract 'y' on both sides

what is y - y = ?

Answer 4

0

Answer 5

🤷🏻‍♀️

Answer 6

good, you're more mentally stable than you think

so when we subtract `y` on both sides

x + y = 5

x + y - y = 5 -y

we're left with

x = 5 - y

does that make sense?

Answer 7

kinda is there a way to use basketball terms to make it easier or baseball

Answer 8

\(\color{#0cbb34}{\text{Originally Posted by}}\) @meganmoney543
kinda is there a way to use basketball terms to make it easier or baseball
\(\color{#0cbb34}{\text{End of Quote}}\)

lol we'll see

so now remember that they gave you two equations in your original question

2x + y = -2
x + y = 5

but now we took that second equation `x + y = 5` and we moved the y over to give us `x = 5 - y`

Answer 9

now we need to plug in the second equation into the first equation

so we said
x = 5 -y

so that means x equals 5 -y
so imagine if we had two baseballs

we're saying that the 2 baseballs are same
so 'x' is a baseball
and 'y-5' is also a baseball

and they're both the same so you could play with either baseball in a baseball game

now in our first equation, we also have an 'x' !
that means we have a baseball there and we can replace it with our other baseball of 'y-5'
since x is the same as y-5

they're both baseballs

does that make sense?

Answer 10

that makes alot more sense

Answer 11

thankk you

Answer 12

I'm sorry I switched from saying 5-y

and was accidentally saying y - 5

but it should be 5-y

Answer 13

so we have

2x + y = -2

so we replace the 'x' with 5-y

and we get

2(5-y) + y = -2

can you distribute the 2 now inside the parenthesis?

Answer 14

\(\color{#0cbb34}{\text{Originally Posted by}}\) @meganmoney543
that makes alot more sense
\(\color{#0cbb34}{\text{End of Quote}}\)
\(\color{#0cbb34}{\text{Originally Posted by}}\) @meganmoney543
thankk you
\(\color{#0cbb34}{\text{End of Quote}}\)

No problem! Let me know what you get as your final answer so I can check it for you

Answer 15

ok

Answer 16

is it 12

Answer 17

That's correct!

Answer 18

yayyyyy

Answer 19

Good job :)

Answer 20

thxxxx ur amazing🙃