we have
Separate the equation above in two equations
equation
equation
we know that
In a system of equations the roots of the equation must satisfy equation and the roots of the equation must satisfy equation
therefore
the answer is
The system of equations is
a. 416
b. 410
c. 46
d. 4−6
Answer:
Step-by-step explanation:
Given :
To Find :Which is equal to ?
a.
b.
c.
d.
Solution:
Property :
Using the property :
So, =
Statement
Reason
Given
1
ABCD is a parallelogram
ABCD
Select a Reason!!
2
A
B
N
x + 2y = 1
x-2y = 13'
then y =
On solving the given set of equations, we get the value of y = 3.
A set of equations having two or more variables whose values can satisfy all the equations in the set at the same time, with the number of variables equal to or fewer than the number of equations in the set is called simultaneous equations.
We are given a set of simultaneous equations in x and y,
x + 2y = 1
x - 2y = 13.
We are asked to find the value of y.
Let the equations
x + 2y = 1... (i)
x 2y = 13 ... (ii).
To solve for y, we subtract (i) from (ii) to get,
∴ We get -4y = 12.
Dividing both sides of this equation by -4, we get,
(-4y)/(-4) = 12/(-4)
or, y = -3.
∴ On solving the given set of the equation we get the value of y = 3.
Learn more about simultaneous equations at
#SPJ2
Answer:
y= -3
Step-by-step explanation:
adding both the equation we get x= 7
and then put value of x in any one equation u will get y as -3