Mathematics: Use the substitution method to solve the system of equations. choose the correct ordered pair. 3x – y = 7 2x – 2y = 2 a. (2, 2) b. (3, -1) c. (3, 2) d. (2, -2)

Use the substitution method to solve the system of

Ответ:

louie3262

15.03.2022

Mathematics

The solution set is (3,2)

C is correct

Step-by-step explanation:

Given: System of equation.

3x-y=7

2x-2y=2

We will solve x and y using substitution method.

3x-y=7

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

Substitute into 2x-2y=2

2x-2(3x-7)=2

2x-6x+14=2

-4x=-12

x=3

Put x=3 into eq(1)

y=3(3)-7

y=2

Hence, The solution set is (3,2)

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Ответ:

princessbrebre4482

25.07.2021

Mathematics

1,000 + 200 + 50 + 6

Step by Step explanation:

Place Values:

1 = Thousands (1,000)
2 = Hundreds (200)
5 = Tens (50)
6 = Ones (6)

1,000 + 200 + 50 + 6 = 1,256

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Use the substitution method to solve the system of equations. choose the correct ordered pair. 3x – y = 7 2x – 2y = 2 a. (2, 2) b. (3, -1) c. (3, 2) d. (2, -2)

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