Not a question i understand please give more detail
You cut out the question-
Set the equations equal to each other
7x=3x+16
Subtract the 3X
4x=16
Divide by 4
X=4
Then substitute, 7(4)=28
The answer is 28 degrees
Hope this helps
Answer:
102
Step-by-step explanation:
You have to substitute x and y. Since x = 3 and y = 4, you would write the equation as 6(3) + 21(4). Multiply that, and you get 18 + 84. Add that together, and you get the answer 102.
Multiply the first equation by -2 to eliminate a variable so it becomes:
-12x+8y=48
4x-8y=-32
Add them together.
-8x=16
x=-2
Plug it in one equation.
6(2)-4y=-24
12-4y=-24
-4y=-12
y=3
Ordered pair is: (-2,3)