2x + 3y = 13 and 4x - y = -2 what is x and y
Answers
Step-by-step explanation:
2x+3y=13......(1)
4x-y=-2.....(2)
now multiply by 2 I. (1)
4x+6y=26
4x-y=-2
substrate
7y=28
y=4
put y in 1
2x+3(4)=13
x=1/2
Solving the equations 2x + 3y = 13 and 4x - y = -2, we get
x = 1/2
y = 4
Given:
Equations:
2x + 3y = 13
4x - y = -2
To find:
The values of x and y
Solution:
In order to solve the two equations, we first combine the two equations and eliminate either x or y term and get a equation solely in terms of one of the two variables.
So,
2x + 3y = 13 --- (1)
4x - y = -2 --- (2)
Multiplying the equation (2) by 3, we get
12x - 3y = -6 --- (3)
Adding the two equations (1) and (3), we get
(2x + 3y) + (12x - 3y) = 13 - 6
=> 14x = 7
=> x = 7/14
=> x = 1/2 = 0.5
Substituting the value of x in equation (1), we get
2(1/2) + 3y = 13
=> 1 + 3y = 13
=> 3y = 13 - 1
=> 3y = 12
=> y = 12/3
=> y = 4
Hence,
x = 1/2
y = 4
#SPJ3