Respuesta :
Answer:
B. (6,3)
Step-by-step explanation:
14x - 2y = 78
2x - 2y = 6
-2y/-2 = (6 - 2x)/-2
y = -3 + x
substitute this y in for the y of the first equation
14x - 2(-3+x) = 78
14x + 6 - 2x = 78
12x + 6 = 78
12x = 72: x = 6
use x to plug into 2nd equation to make life easier
y = -3 + (6)
y = 3
(6,3)
Answer:
The correct answer would be B
Step-by-step explanation:
Here is a easy way to do this!
So u have 14 and a 2
14-2=12
And 6x2=12 so we know the first number is 6
The 3 is the next number because the 3 fits in
3x2=6
So the answer would be B
Note:*This method does not always work but this is a easy way to do this*
By: /Brainlyz/
(This is for the people who are learning this)
“Good luck!” ~_^