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How would you solve this problem 6x - 9y equals 19.5 and 7y - 3x equals -11?
Wiki User
∙ 13y ago
First, you would have to eliminate a variable. Let's multiply each side of the second equation by two.
7y - 3x = -11 => 14y - 6x = -22 => -6x + 14y = -22
Now you have two new equations:
6x - 9y = 19.5
-6x + 14y = -22
Now add the two equations together to eliminate the variable.
0x + 5y = -2.5 => 5y = -2.5 => y = -0.5
Substitute y = -0.5 into an original equation.
6x - 9y = 19.5 => 6x - 9(-0.5) = 19.5 => 6x - (-4.5) = 19.5 => 6x = 15 => x = 2.5
The answer is:
x = 2.5
y = -0.5
or as an ordered pair:
(2.5,-0.5)
Wiki User
∙ 13y ago
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What times 20 equals 195?
9.75 x 20 = 195
195 km equals how much dm?
195 kilometers is equal to 1,950,000 decimeters.
What is 237 plus 195 plus 5 equals?
237 + 195 + 5 = 437
How many times can three go into 195?
195 divided by 3 equals 65.
What multiplied by what equals 195?
These pairs of numbers, when multiplied, equal 195: (1, 195) (3, 65) (5, 39) (13, 15)
What times what equals to 195?
Pairs of positive integer factors of 195 are: 1 x 195 = 195 3 x 65 = 195 5 x 39 = 195 13 x 15 = 195
What is 65x3 equals?
195
What divided by 195 equals 13?
2,535 / 195 = 13
What times 20 equals 195?
9.75 x 20 = 195
What is negative 3 v equals 195?
If: -3v = 195 Then: v = -65
What does 195 divided by 75 equal?
2.6
What is 237 plus 195 plus 5 equals?
237 + 195 + 5 = 437
195 km equals how much dm?
195 kilometers is equal to 1,950,000 decimeters.
How many times can three go into 195?
195 divided by 3 equals 65.
What multiplied by what equals 195?
These pairs of numbers, when multiplied, equal 195: (1, 195) (3, 65) (5, 39) (13, 15)
195 degree Celsius equals what degree Fahrenheit?
195 degrees Celsius = 383 degrees Fahrenheit.
How many cm equals 1.95 meters?
195
