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kramer
3 years ago
8

How to do it solve for y

Mathematics
2 answers:
Goryan [66]3 years ago
6 0

Answer:

y=1

Step-by-step explanation:

1. Isolate the variable

1+2y=3

-1       -1

2y=2

__  _

2    2

y=1

geniusboy [140]3 years ago
6 0

Answer:

y = 1

Step-by-step explanation:

1 times 2 equals 2

so 2 + 1 equals 3

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If C is the midpoint of EF, C has coordinate -8, F has coordinate 4, then find the coordinate of E
ycow [4]
<h3>Answer:    -20</h3>

==========================================================

Work Shown:

Let x be the location of E on the number line.

Since C is the midpoint of E and F, this means we can find C's location by adding E and F together and dividing that sum by 2

midpoint = (endpoint1 + endpoint2)/2

C = (E+F)/2

Plug in E = x, C = -8 and F = 4. Then solve for x

C = (E+F)/2

-8 = (x+4)/2

(x+4)/2 = -8

x+4 = 2(-8) .... multiplying both sides by 2

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x = -16-4 .... subtract 4 from both sides

x = -20

The location of point E on the number line is -20

-------------

As a check, lets add E and F to get E+F = -20+4 = -16

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This confirms our answer.

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