Question

Use the elimanation process to solve this equation x-2y=5
x+6y=13

Answer 1

there on top of each other

Answer 2

there is only one looking please help

Answer 3

You know how the elimination process works?

Answer 4

yes

Answer 5

Then where do you begin?

Answer 6

im asking you this question'

Answer 7

You did say you know how the elimination process works...
Well, anyway, whenever you have an equality, say
a = b
h = k

if you multiply both sides of an equality by a constant, equality holds:
na = nb
nh = nk

Also, you can add the left-hand sides of the equalities, and it will be equal to the sum of the right-hand sides:
a = b
h = k

a + h = b + k

These are key to the elimination process.

Answer 8

Take a look at your pair of equations:
x - 2y = 5
x + 6y = 13

Of course, we can apply the second property so mentioned and right away add the left-hand sides and the right-hand sides of the equation, like so:
(x - 2y) + (x + 6y) = 5 + 13
2x + 4y = 18

But that doesn't really help. The key is to use the first principle as well. In particular, multiplying (3) to the first equation before doing so, or multiplying (-1) to the second (or first) equation, before applying the second property would help a whole bunch... can you see why?