Which ordered pair is the solution to the system of equations? -5x + y = -3 3x - 8y = 24 A. (0, -3) B. (-3, 0) C. (4, 6) D. (2,
7)
1 answer:
-5x+y=-3
3x-8y=24
Substitution method. Solving for the first equation, because it's easy.
y=-3+5x
Plugin to the other equation.
3x-8(-3+5x)=24
Simplify: 3x+24-40x=24 (Remember, multiplying negatives makes it positive.)
Simplify: -37x + 24 = 24
Subtract: -37x = 24-24
-37x=0
x=0
Plug back into the first:
y=-3+5(0)
y=-3+0
y=-3
Option A
You might be interested in
3/4 bc 1 1/4 divided by 20 is 1/16. 1/16 times 12 is 3/4
The answer is 6 square root of 3.
4 times 12 square rooted minus 2 times square root of 3 = 10.39230485 =
6 square root of 3.
The total cost without tax would be $261, sales tax would be $15.66, if we add them together the answer would be $276.66
Answer:
D
Step-by-step explanation:
