0
You can answer this by the method of substitution, which means that you find what one variable equals and you substitute it into the second equation to find the other variable.
14x-2y=78; solve for y
-2y=78-14x; subtract 14x on both sides
y=-39+7x; divide both sides by -2
y=7x-39
Substitute 7x-39 for y in the second equation.
2x-2(7x-39)=6; solve for x
2x-14x+78=6; distribute the -2
-12x+78=6
-12x=-72; subtract 78 on both sides
x=6; divide both sides by -12
Now go back to the first equation and for x, substitute 6. You can either substitute in 14x-2y=78 or the y=7x-39, but it's easier where you already have y isolated.
y=7(6)-39
y=42-39
y=3
You got that x=6 and that y=3; therefore, the ordered pair is (6,3).
What else can I help you with?
Enter the answer as an ordered pair 2y plus 2x equals 20 y - 2x equals 4?
2y + 2x = 20 y - 2x = 4 Add the two equations: 3y = 24 so that y = 8 Substitute this value of y in the second equation: 8 - 2x = 4 then 4 = 2x so that x = 2 Thus the ordered pair (y,x) = (8,2)
What is 4x plus 1 equals 2x plus 12 equals?
x=5.54x+1= 2x+12-1 -14x=2x+11-2x -2x2x=11/2 /2x=5.5
What is the order pair for 2x plus 6y equals 24?
There are infinitely many ordered pairs. The coordinates of each of the infinite number of points on the straight line defined by 2x + 6y = 24 (or equivalently, 3y = -x + 12) is an ordered pair that satisfies the requirements.
8x2 - 14x - 30 by 2x - 6?
( 8x2 - 14x - 30 ) divided by ( 2x - 6 ) = 4x + 5
What is 3x plus 1 times 2x plus 4?
(3x+1)(2x+4) = 6x2+4+2x+12x = 6x2+14x+4
How do you Put in ordered pair 2x plus 2y equals 14 and 2x-4 equals 5?
k
What is the ordered pair for the equations y equals 2x plus 1 and y equals -x plus 4?
The ordered pair is (1, 3).
14x-14 equals 2x plus 46?
14x - 14 = 2x + 46 14x - 2x = 46 + 14 12x = 60 x = 5
What is the order pair for x - 2y equals -1 and 2x - y equals 4?
The ordered pair is (3, 2).
What is the order pair for x - 2y equals -4 and 2x - y equals 1?
The ordered pair is (2, 3).
What is the order pair for 2x - 3y equals 4 and x plus 4y equals -9?
The ordered pair is (-1, -2).
Which ordered pair is a solution for y equals 2x plus 3?
There are an infinite number of ordered pairs. (-5, -7) is one pair
What is the ordered pair of 2x - 3y equals 7 -3x plus y equals 7?
{-4,-5}
What is the ordered pair of 4x-4y plus 7 equals 15 8y equals 2x plus 14?
(5,3)
What is the ordered pair the is th solution to these equations x equals 5y and 2x - 3y equals 14?
(10, 2)
What is the ordered pair for y equals 2x plus 1 and y equals x -5?
x = -6 y = -11
Enter the answer as an ordered pair 2y plus 2x equals 20 y - 2x equals 4?
2y + 2x = 20 y - 2x = 4 Add the two equations: 3y = 24 so that y = 8 Substitute this value of y in the second equation: 8 - 2x = 4 then 4 = 2x so that x = 2 Thus the ordered pair (y,x) = (8,2)
