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faust18 [17]
2 years ago
10

Plzzzzzz help Solve the system by Substitution.

Mathematics
1 answer:
tankabanditka [31]2 years ago
4 0

Answer:

B

Both systems can be sloved by susbituding (1,2)

Step-by-step explanation:

(1)- x−4y=−7

Substitute in the x and y values: 1 - 4 (2) = -7

Multiply the numbers : 1 - 8 = -7

Calculate the difference: -7 = -7

(2) - −x+2y=3

Substitute in the x and y values: -1 + 2 (2) = 3

Multiply the numbers : -1 + 4 = 3

Calculate the sum: 3 = 3

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Rewrite the equation correctly.
Nataliya [291]

Answer:

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Step-by-step explanation:

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2x - 2x - y = -2x + 5

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7 0
3 years ago
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slavikrds [6]

Answer:

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3 years ago
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How do you work it out ???
Natalka [10]
Answer = 70 girls

Firstly, turn 56% into a decimal

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0.56 x 126 = 70.56

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3 years ago
Unscramble each of the clue words.
ella [17]
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8 0
3 years ago
The nth term of a sequence is 1 - 5n<br> Work out the 6th term of the sequence.<br> 6th term =
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3 years ago
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