From the secon equation, we can find x in terms of y by doing:
x = 2 + y
Pluggin this value of x in the first equation:
2(2 + y) - 2y = 14
4 = 14
We reached a false statement, which means that the given system of equations has no solutions. Another way to verify that would be by dividing the first equation by 2. Doing so, we would have equation 1: x - y = 7 and equation 2: x - y = 2, which is clearly impossible!
For this case we must simplify the following expression:
So, solving the first parentheses we have:
We have to:
We add similar terms taking into account that different signs are subtracted and the sign of the major is placed:
Finally, the simplified expression is:
ANswer:
Answer:
C. -4/3
Step-by-step explanation:
Parallel lines have the same gradient (steepness) and this means that they will never intersect.
Hope this helps!
Answer:
1/8 + 1/8 + 1/8
Step-by-step explanation:
Answer:
100°
since being sum of angles of triangle
