Question

What is the solution to the system of equations?

x+y= 5
x-2y= 2

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PLZ HELP I WILL MEDAL AND FAN!!!

Answer 1

Do you know the two methods for solving systems?

Answer 2

Well, substituting and eliminating. This method looks like it'll be easier to substitute.

x+y= 5
x-2y= 2

So in your first equation x + y = 5, solve for y.

y = 5 - x

Now in your second eqauation, plug 5 - x into y to get x.

Answer 3

@livias.random

Answer 4

x+y= 5
x-2y= 2

Rearrange:
x + y = 5
y = 5 - x

Substitute:
x - 3y = 2
x - 2 (5 - x) = 2
x - 10 + 2x = 2
3x - 10 = 2
3x = 12

Answer 5

3x = 12
x = 4

x + y = 5
4 + y = 5
y = 1

Answer 6

ok i am writing this down. I am following

Answer 7

ok so is it (1,12) or (12,1)

Answer 8

Well;
x = 4
y = 1

Typically written as (4,1)

Answer 9

oh ok i have two more like this can u help me?