Answer:
i got A
Step-by-step explanation:
The easiest way to solve this is by elimination.
3x - y = 6
6x + y = 21
Since you have a negative and positive y with the same coefficients (1), they cancel, and you add the other terms so it would look like:
9x = 27
Then solving for x leaves you with x = 3
Then you take the x value of three and plug it into to either of the equations, so
3(3) - y = 6
9 - y = 6
subtracting 9
-y = -3
then dividing by -1
y = 3
so the solution is x = 3 y = 3 or (3,3)
Answer:
A
Step-by-step explanation:
3x9+ 27 + 8= 35
Answer:
A - 7
Step-by-step explanation:
These angles are corresponding, meaning they are congruent. Therefore it is simple algebra.
16x - 7 = 105
16x = 112
112/16 = 7
x=7
