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My name is Ann [436]
3 years ago
8

20 POINTS 6x+2y=42 -6x+12y=42 Solve with elimination

Mathematics
2 answers:
aliya0001 [1]3 years ago
8 0

Answer:

X=17/3, Y=4

Step-by-step explanation:

In the attached file

Katen [24]3 years ago
5 0

Answer:

x=5,y=6

Step-by-step explanation:

given,  6x+2y=42................(1)

           -6x+12y=42..............(2)

adding (1) and (2)

                  6x+2y-6x+12y=42+42

                   14y=84

                     y=\frac{84}{14}

                       y=6,

y=6 put in equation (1)

6x+2times{6}=42

6x=42-12=30

x=\frac{30}{6}

x=5

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Nancy and Kevin collect coins. Nancy has x coins. Kevin has 9 coins fewer than five times the number of coins Nancy has. Write a
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Answer:

x + (5x-9)

Step-by-step explanation:

x stands for the number of coins Nancy has

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2 years ago
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3 years ago
to solve the system of equations below, Becca isolated x^2 in the firs equation and then substituted it into the second equation
bija089 [108]

The resulting equation if Becca isolated x² in the first equation and then substituted it into the second equation is (9-y²) / 25 - y²/36 = 1

<h3>Equation</h3>

x² + y² = 9

x²/25 - y²/36 = 1

From (1)

x² = 9 - y²

substitute x² = 9 - y² into (2)

x²/25 - y²/36 = 1

(9-y²) / 25 - y²/36 = 1

Therefore, the resulting equation is option C; (9-y²) / 25 - y²/36 = 1

Learn more about equation:

brainly.com/question/4172455

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