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Multiply each member of this equation by (-2) and post the result here.
Equation: 2x – 7y = 3

Top one by -2 :)
-4x + 14y = -6
4x + 5y = -2
19y = -8 and you can work it from there :)

Ok.. so i think i understand it

Soo i just gotta single out my coefficient?

@raebaby420
Let's try another one. Same instructions. Answer?
3x + 4y = 7
3x - 4y = 10

umm haha i have no clue.

whats the first step i have to complete?

Question: What added to 3x gives 0?
(3x) + ? = 0
? =