You would multiply negative on by -10x+5y=30 to get 10x-5y=-30
-10x-8y=30
10x-5y=-30
-13y=0
-13y/-13=0/-13
y=0
then you would plug y into -10x+5y =30
to get 10x=30
10x/10=30/10
x=3
the point would be (3,0)
Answer:
I think you mispelled something there... if the system of equation involves 2x-3, the answer is x = 6/5 and y = -27/5
Step-by-step explanation:
- 7x+3 = -2x-3
1. move -3 to the other side (so add it on both sides)
2. move 7x to the other side (in order to combine like terms)
3. Solve for x (Divide 5 by both systems)
4. Plug x into one of the equations to find y
- 2 * (6/5) -3 = -27/5
- y = -27/5
The tax on the pillow is 0.08($8) and is $0.64.
Then the total paid by the customer for the pillow is $8 = $0.64 = $8.64.
The answer is B. Infinitely many solutions. <span />
