Solve the system of equations below.
2 answers:
Answer:
Option B is correct
(9, 3)
Step-by-step explanation:
Given the system of equations:
.....[1]
......[2]
Multiply equation [1] by 2 both sides we have;
.....[3]
Subtract [3] from [2] to eliminate x we get;
Combine like terms;
or
y = 3
Substitute in [1] we have;
x-2(3) = 3
x -6 =3
Add 6 to both sides we have;
x = 9
Therefore, the solution for the given system of equations is, (9, 3)
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Answer:
x = ± 2
Step-by-step explanation:
Given
x² + 5 = 3x² - 3 ( subtract x² + 5 from both sides )
0 = 2x² - 8 ( add 8 to both sides )
8 = 2x² ( divide both sides by 2 )
4 = x² ( take the square root of both sides )
x = ± = ± 2