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BigorU [14]
3 years ago
12

Solve this by substitution

Mathematics
1 answer:
frozen [14]3 years ago
6 0

Answer:

y= 1 and x=-2

Step-by-step explanation:

Since they both equal y, you can equal them to each other:

x + 3 = 2x + 5

Then solve:

x - x + 3 = 2x - x + 5

3 - 5 = x + 5 - 5

-2 = x

Substitute x in either equation to solve for y:

y = (-2) +3

y = 1

Or the other equation:

y = 2(-2) + 5

y = -4 + 5

y = 1

hope this helps :)

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Suppose the equation for line A is given by 2x = 5y – 25. If line A and B are perpendicular
Ludmilka [50]

The required equation of line B is 2y+5x=-2

The equation of a line in point-slope form is expressed as:

y-y0 = m(x-x0)

m is the slope of the line

(x0, y0) is the point on the line

Given the line A expressed as:

2x = 5y – 25

Rewrite in standard form

5y = 2x + 25

y = 2/5 x + 5

The slope will be 2/5

The slope of the perpendicular line will be;

M = \frac{-1}{(2/5)}\\M = \frac{-5}{2}

Substitute the point (-6, 14) and slope -5/2 into the equation above to get the required equation of line B

y-14=-5/2(x+6)\\2(y-14) = -5(x+6)\\2y-28=-5x-30\\2y+5x=-30+28\\2y+5x=-2\\

Hence the required equation of line B is 2y+5x=-2

Learn more here: brainly.com/question/13140886

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3 years ago
Find value of each variable.​
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The equation of line "m" is 5x-3y=2<br>what is the slope of a line that is perpendicular to line M?
sdas [7]
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9k^2+11k-36k-44 ????
Contact [7]

Answer:

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Step-by-step explanation:

4 0
3 years ago
Helpppppppppppppppppp
fgiga [73]

Answer:

The answer is 23/8

Step-by-step explanation:

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i hope this helps

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