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drek231 [11]
2 years ago
6

Solve the system by substitution x=4y-7 2x+9y=-31

Mathematics
1 answer:
ElenaW [278]2 years ago
3 0

Answer:

simple follow me

Step-by-step explanation:

2(4y-7)+9y=-31

8y-14+9y=-31

<u>y=</u><u> </u><u>-</u><u>1</u><u>7</u>

<u>x=</u><u> </u><u>-</u><u>7</u><u>5</u>

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Answer:

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Step-by-step explanation:

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timama [110]

Answer:

Step-by-step explanation:

Here you go mate

Use PEMDAS

Parenthesis,Exponent,Multiplication,Division,Addition,Subtraction

Step 1

4n-9=2(5+2n)  Equation/Question

Step 2

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Step 3

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Step 4

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Step-by-step explanation:

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