First set up a system of equations and solve.
4x+y=10
x+3y=8
In order to have one variable cancel out, I will multiply the top by -3.
-12x-3y=-30
x+3y=8
____________
-11x=-22
x=2
Then plug the x value into one of the original equations.
(2)+3y=8
3y=6
y=2
Now plug both into the final equation:
5(2)+8(2)/3
(10+16)/3
26/3
8.667 is the answer or 26/3.
Answer:
4
Step-by-step explanation:
f(-3) = 2 * (-3) + 10
Answer:
1) Equation: 2x+6 = -2x-2
Solution: x = -2
2) Equation: 2 = -8-1x
Solution: x = -10
3) Equation: 3x-2 = 4
Solution: 2
Step-by-step explanation:
1) Add the "x" and "1" boxes on each side to form 2x+6 = -2x-2.
2x+6 = -2x-2
Add 2 to the -2 on the right and to the 6 on the left, making it:
2x+8 = -2x
Subtract 2x from the 2x on the left and -2x on the right, making it:
8 = -4x
Divide -4 on both sides, making the answer:
x = -2
2) Add the 1's, x's, and -x's on both sides, making it:
2 = -8-1x
Then add 8 on both sides, making it:
10 = -1x
Divide -1 on both sides, making the answer=
x = -10
3) Individually add the boxes on each side, making it:
3x-2 = 4
Add 2 on both sides, making it:
3x = 6
Divide 3 on both sides, making the answer=
x = 2
Ok I think it would be 13 I think maybe
Process: x^2 -12x +36 =0
(X-6) ^2 =0
X-6=0
Result: x=6
