He put the comma in the wrong place so he has to replace his comma
Answer:
Step-by-step explanation:
y=-2x-4
y=5x+5
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-2x-4=5x+5
-2x-5x-4=5
-7x-4=5
-7x=5+4
-7x=9
x=9/-7
x=-9/7
y=5(-9/7)+5
y=-45/7+35/7
y=-10/7
Answer: x=-9/7, y=-10/7. (-9/7, -10/7).
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-3x+y=8
2y=6x-10
----------------
6x-2y=10
-3x+y=8
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y=8-(-3x)=8+3x
6x-2(8+3x)=10
6x-16-6x=10
-16=10
no solution
Answer: No Solution
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2y=4(x+3)
y-2x=6
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y=4x+12
y=2x+6
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4x+12=2x+6
4x-2x+12=6
2x+12=6
2x=6-12
2x=-6
x=-6/2
x=-3
y=2(-3)+6=-6+6=0
Answer: x=-3, y=0. (-3, 0).
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x+2y=4
4x-2y=16
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5x=20
x=20/5
x=4
4+2y=4
2y=4-4
2y=0
y=0/2
y=0
Answer: x=4, y=0. (4, 0).
Answer:
3.5
Step-by-step explanation:
Answer:
-41
Step-by-step explanation:
Use 2 points to find the equation of the line using the 2-point form of the equation of a line. Then we write the equation in the slope-intercept form to find the y-intercept.

We can use points (-36, -117) and (-27, -98), so
x1 = -36
x2 = -27
y1 = -117
y2 = -98




The y-intercept is -41.
Answer:
cpctc and aas
Step-by-step explanation:
If u look at it there is only 2 angles and one side (aas) and cpctc because it saying that since we know it congruent then we know that ab is equal to cb