Answer:
x = 3
y = 4
hey, I am not 100% sure of the certainty of my answers, I am using what I remember about that topic but I do not know if it is right or wrong, I hope I have helped you, I did what I could.
Step-by-step explanation:
-3x + 2y = 23
5x + 2y = -17
X solution:
(you cancel the y)
-3x = 23
5x = -17
(you combine all the values above with those below)
2x = 6
(solve the ecuation normaly)
x = 6/2 = 3
Y solution:
(you replace the x)
-3(3) + 2y = 23
5(3) + 2y = -17
-9 + 2y = 23
15 + 2y = -17
(you combine all the values above with those below)
6 + 4y = 6
(solve the ecuation normaly)
4y = 0
y = 4
(I do not really know if the answer here is 0 or 4 since when passing the 4 to divide it would be 0/4 and I do not understand very well how that is solved)
Answer:
Based on the linear relation shown above, when the y coordinate is 3, the x coordinate is 8.
Step-by-step explanation:
This is because every time you add an input of 2, you subtract an output of 4.
Basically in the x value you add 2 while in the why value you subtract 4.
(2, 13) (4, 9) (6, 5) (8, 1)
Answer:
25
Step-by-step explanation:
Rob has R quarters, and David has R + 24 or 24 more than rob, so together they have 2R+24
We can form this algebraic equation to work the equation out:
16 + 2x = -24
2x = -40
x - 20
Hope I helped.
