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3 years ago

I need to somebody show work for number 13 please

Mathematics

1 answer:

Damm [24]3 years ago

6 0

<h3>Given</h3>

PQ = QR . . . . . . Q is the midpoint of PR
PQ = 3x+14
QR = 7x-10

<h3>Solution</h3>

Put the given expressions in the given relation.

... 3x +14 = 7x -10

Subtract the left side.

... 0 = (7x -10) -(3x +14)

... 0 = (7-3)x +(-10-14) . . . . . simplify

... 0 = 4x -24

Divide by the coefficient of x.

... 0 = x - 6

Add the opposite of the constant.

... 6 = x

The value of x is 6.

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devlian [24]

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3 years ago

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posledela

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3 years ago

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Ymorist [56]

Answer:

The value of x is 7 and y is 14.

Step-by-step explanation:

The steps are :

$- 3x + y = - 7 - - - (1)$

$y = x + 7 - - - (2)$

$(2)→(1)$

$- 3x + (x + 7) = - 7 \\ - 3x + x + 7 = - 7 \\ - 2x = - 14 \\ x = 7$

$substitute \: x = 7 \: \: into \: \: (2)$

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3 years ago

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aksik [14]

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