You cant solve this if it doesnt say what the expression totals up to, sorry!
Answer:
(x, y) = (7, -7)
Step-by-step explanation:
You can eliminate y by adding the two equations:
(3x -y) +(3x +y) = (28) +(14)
6x = 42 . . . . simplify
x = 7 . . . . . . divide by 6
You can eliminate x by subtracting the two equations:
(3x +y) -(3x -y) = (14) -(28)
2y = -14 . . . . simplify
y = -7 . . . . . . divide by 2
The solution is (x, y) = (7, -7).
Y=-3x+1 is your equation. And the online graphing calculation I use is desmos.com. It's free too.
Total = Principal * (1 + rate/n)^n*years
Total = 8,333 * (1 + .08/2) ^ 2*12
Total = 8,333 * (1 + .04)^24
Total = 8,333 * <span><span><span>2.5633041649
</span>
</span>
</span>
<span><span><span>Total = 21,360.01</span>
</span> </span>
The answer is (6.4, 4.4).
