Answer:
<u>Step 1: Set x to 0
</u>
(0, 3)
<u>Step 2: Set x to 1
</u>
(1, 5)
<u>Step 3: Set x to 2
</u>
(2, 7)
<u>Step 4: Set x to 3
</u>
(3, 9)
Answer:
i think its x
=
11
,
3
Step-by-step explanation:
Answer:
Step-by-step explanation:
n = 3
3(n + 2) = 3(3+2) = 3*5 = 15
Is this question lacking information? Because we don't know how much one pound costs.
9514 1404 393
Answer:
(x, y, z) = (-1, 0, -3)
Step-by-step explanation:
We notice that the coefficients of z are such that elimination of the z term from the equations is made easy.
Adding equations 1 and 2:
(2x -3y -2z) +(x +3y +2z) = (4) +(-7)
3x = -3
x = -1
Adding equations 2 and 3:
(x +3y +2z) +(-4x -4y -2z) = (-7) +(10)
-3x -y = 3
Substituting for x, we get ...
(-3)(-1) -y = 3
0 = y . . . . . . . . . . . add y-3 to both sides
Then z can be found from any equation. Substituting for x and y in the second equation gives ...
-1 +2z = -7
2z = -6 . . . . . add 1
z = -3 . . . . . .divide by 2
The solution is (x, y, z) = (-1, 0, -3).
