Question

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Answer 1

First, you want to cancel out your x or y terms.

Answer 2

Multiply the first equation by either -1 or +1 to cancel terms

Answer 3

-3x + 6y = 10
-3x + 6y = -4

1(-3x + 6y) = 10
-3 + 6y = -4

12y = 6

y / 12/6

y = 2
Now plug 2 in, then plug in x.

Answer 4

yes

Answer 5

Your book is wrong

Answer 6

Your book is wrong

Answer 7

@Compassionate
his book is not wrong - your answer is

the 2 lines have the same slope therefore there is no solution to th esystem

Answer 8

if you rearrange the equations into the form y=mx +b you get

y= 3x/6 + 10/6

y = 3x/6 -4/6

if you plot these 2 lines (or look at teh slope in the equation you can see they are parallel:



Parallel lines do not intersect, therefore there is no point which is common to both equations - i.e. there is no solution to the system.