3 years ago

Solve the system of equations:

Mathematics

1 answer:

Ahat [919]3 years ago

8 0

Answer:

Step-by-step explanation:

z = 3

2y + z = 1

2y + 3 = 1 {substituting z =3}

2y = 1 -3

2y = -2

y = - 2/2

y = -1

2x +3y +2z = 13

2x + 3 * (-1) + 2*3 = 13 { {substituting z =3} and y = -1}

2x -3 + 6 =13

2x + 3 = 13

2x = 13 - 3

2x= 10

x = 10/2

x = 5

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3 years ago

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3 years ago

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2 years ago

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Katena32 [7]

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3 years ago

Solve the equation given in Exercise 15 with and without using the LCD of the fractions. Are your answers the same?

Colt1911 [192]

Without LCD :
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1/2(4x + 6) = 1/3(9x - 24) ...multiply by 6
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3 years ago