If you arrange this properly in the slope intercept form (y=mx+b) so just make it arranged in this format.
4x-7y=-28
Subtract 4x
-7y=-28-4x
Rearrange.
-7y=-4x-28
Divide by -7
y=4/7x+28
The number next to x is your slope and the other number is your y-intercept.
Answer:
x=.5
Step-by-step explanation:
6x-9+8-4x=0
6x-4x=2x
-9+8=-1
2x-1=0
2x=1
x=.5
Answer:
15
Step-by-step explanation:
Answer:
4 minutes
Step-by-step explanation:
I will use ratios for this equation:

It will take Zahra 4 minutes to read 180 words because she reads 45 words PER minute.
Answer:
create a circle with the origin as its centre and a radius of the origin and point a then locate a point on a circle that is 90 degrees clockwise from point a.
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