Asked by Gabby

How many solutions does the system of equations have?
y=4x+4
y=4x-3

y=-6x-2
y+2=-6x
Answered by Gabby
Sorry forgot to put these 2 in as well-

What is the solution of the system?
5x-y =-7
3x-y=-2

What is the solution of the system?
5x+6y=20
9x+11y=32
Answered by Steve
For the first one, just subtract the two equations to get

2x = -5
and go from there

For the 2nd set, multiply them a bit to get

45x+54y = 180
45x+55y = 160
Now subtract to get
y = -20
and go from there
Answered by Gabby
Ok thx
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