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12345 [234]
3 years ago
14

Solve the following system:

Mathematics
2 answers:
Angelina_Jolie [31]3 years ago
5 0
Y = x + 3...so sub in x + 3 for y in the other equation

3x + y = 19
3x + x + 3 = 19
4x + 3 = 19
4x = 19 - 3
4x = 16
x = 16/4
x = 4

y = x + 3
y = 4 + 3
y = 7

so ur solution is (4,7) <==
Reika [66]3 years ago
3 0

Answer:

option B (4,7)

Step-by-step explanation:

we have

y=x+3 -----> equation A

3x+y=19 -----> equation B

Substitute equation A in equation B

3x+[x+3]=19

3x+x=19-3

4x=16

x=4

Find the value of y

y=x+3

y=4+3=7

the solution is the point (4,7)

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3 years ago
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Step-by-step explanation:


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4 years ago
Find a quadratic polynomial whose sum and and product is -7 and -2
vampirchik [111]

Answer:

<h2>x²+7x-2 = 0</h2>

Step-by-step explanation:

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Substituting this values in equation 1 above wil give;

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3 0
3 years ago
Which is larger 0.7 or 3/4
Ksenya-84 [330]
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3 0
3 years ago
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Me pueden ayudar a saber el resultado y la operacion de la ecuacion 8-5x=8+2x por favor me urge
My name is Ann [436]
<span>8-5x=8+2x is to be solved for x.

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4 years ago
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