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Andrews [41]
3 years ago
10

There are two mystery numbers. The sum of 7 times the first number and 5 times the second number is -11. The sum of 10 times the

first number and 8 times the second number is -20. What are the two numbers?
Mathematics
1 answer:
AlekseyPX3 years ago
8 0
First is 2, second is -5
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3 years ago
What are the solutions to the equation (x + 2)^2 = 49?
Mekhanik [1.2K]

Answer:

X= 5, -9

Step-by-step explanation:

(X+2)² =49

Expand the bracket,


(X+2) (X+2)= 49

Apply the distributive property;

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X²+2X+2X+4=49

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Move 49 to the left side of the equation;

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Moving to the left side of the equation;

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3 years ago
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