Question

What is the value of the x variable in the solution to the following system of equations?
2x + 2y = 6
x + 3y = −1
−2
2
5
−5

Answer 1

DO you know how to solve the system of eq?

Answer 2

not really

Answer 3

Well, have you ever heard of any of these methods: systems of eq solving by substitution method and solovning by substraction method?

Answer 4

uhmm yeaa ive heard of them

Answer 5

So which one do you think you should use here?

Answer 6

i have no clue. this is my worse subject. maybe substitution method

Answer 7

Well, if you need to find x, which one (y or x) do you need to substitute?

Answer 8

y ?

Answer 9

yes, you are right.

2x + 2y = 6
y=?

Answer 10

y = 6 ?

Answer 11

no

Answer 12

2x + 2y = 6
2y=6-2x
y=3-x

Now insert everywhere 3-x where is "y" here: x + 3y = −1 and you will find value of x

Answer 13

okay i think its 2

Answer 14

you are right

Answer 15

thank u !