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Write down both equations (I'll label them (1) and (2)):
(1) a = 3b - 4
(2) a + b = 16
Pass b to the left side of the equation (1):
(1) a - 3b = -4
(2) a + b = 16
Multiply (1) by -1:
(1) -a + 3b = 4
(2) a + b = 16
Add down both equations:
-a + 3b + a + b = 4 + 16
4b = 20
b = 5
Replace b in (2):
a + 5 = 16
a = 11
What else can I help you with?
Where is the center of the circle given by the equation x plus 7 2 plus y 5 2 equals 16 Enter your answer as an ordered pair?
(x+7)2+(y+5)2 = 16 Centre of circle: (-7, -5) Radius: 4
What is 16 plus 16 plus 16 plus 16 plus 16 plus 16 plus 16 equals?
It is 112
What is 16 plus 16 plus 16 plus 16 equals?
The answer is 64.
What is 16 plus 16 plus 16 plus 16 plus 16 plus 16 plus 17 equeal?
It equals 113.
IF 2 plus 3 equals 10 7 plus 2 equals 63 6 plus 5 equals 66 8 plus 4 equals 96 THEN 9 plus 7 equals?
The answer is 144. The compound operator for (a) and (b) in each pair is a * (a+b). For 9 and 7, this is 9 x (9+7) = 9 x 16 = 144.
Solve the system of equations Enter your answer as an ordered pair 4x plus 8y equals 16 4x minus 8y equals 0?
16
Solve the following system of equations express your answer as an ordered pair 2x plus 5y equals 16 and -5x minus 2y equals 2?
The solutions are: x = -2 and y = 4
What are the ordered pairs of 2x plus 5y equals 16 -x plus y equals -1?
(x, y) = (3, 2)
Where is the center of the circle given by the equation x plus 7 2 plus y 5 2 equals 16 Enter your answer as an ordered pair?
(x+7)2+(y+5)2 = 16 Centre of circle: (-7, -5) Radius: 4
Where is the center of the circle given by the equation x plus 7 2 plus y - 5 2 equals 16 Enter your answer as an ordered pair?
I think this means (x+7)squared + (y-5)squared =4squared, which represents a circle centred at -7,+5
What is the ordered pair for 2y equals 4x-16 and 5y equals 4x plus 8?
2y = 4x - 16 5y = 4x + 8 Subtract the first equation from the second: 3y = 24 so that y = 8 Substitute this into the first equation: 16 = 4x - 16 ie 32 = 4x so that x = 8 So the solution is (8, 8)
What is the ordered pair for 2x plus 4y equals 16 and 2x-4y equals 0?
2x + 4y = 16 <=> 2x + 4y - 16 = 0 2x - 4y = 0 2x - 4y = 2x + 4y - 16 -8y = -16 y = 2 Substituting the known value for y in either of the original equations enables x to be determined. 2x + (4*2) = 16 : 2x = 16 - 8 : x2x = 8 : x = 4 2x - (4*2) = 0 : 2x - 8 = 0 : 2x = 8 : x = 4. The ordered pair satisfying both equations is (4,2)
Where is the center of the circle given by the equation (x plus 7)2 plus (y - 5)2 16 Enter your answer as an ordered pair.?
The center of the circle is at (-7, 5)
What is 16 plus 16 plus 16 plus 16 plus 16 plus 16 equals?
96
What is 16 plus 16 plus 16 plus 16 plus 16 plus 16 plus 16 equals?
It is 112
Which property justifies the following statement if W plus -8 equals 16 then w plus -8 plus 8 equals 16 plus 8?
It is the property that equals plus equals are equals.
What is 16 plus 16 plus 16 plus 16 equals?
The answer is 64.
