Solve the system of equations below. 4x+y=16 2x+3y=-2 A. (4,-5) B. (5,-4) C. (5,4) D. (-5,4)
2 answers:
Answer:
Option B is correct.
(5, -4)
Step-by-step explanation:
Given the system of equations:
......[1]
.....[2]
Multiply equation [2] by 2 both sides we have;
.....[3]
Subtract equation [3] from [1] we have;
Combine like terms;
Divide both sides by -5 we have;
y = -4
Substitute this value y in [1] we have;
4x+(-4) = 16
⇒4x - 4 = 16
Add 4 to both sides we have;
4x = 20
Divide both sides by 4 we have;
x = 5
therefore, the solutions of the given systems is, (5, -4).
You might be interested in
Answer:
-2 > -6 . . . or . . . R > S
Step-by-step explanation:
If you plot the temperatures of the two cities on a number line, you see that the temperature for City R is plotted to the right of the temperature for City S. This means the temperature of City S is less than that of City R.
If your inequality relates cities:
S < R or R > S
If your inequality relates temperatures:
-6 < -2 or -2 > -6
