4x-y=11. -8x+2y=-22. linear simultaneous equitation i reported on spams so there id are bbansa
Answers
Answer:
y-2x=11
Step-by-step explanation:
Answer:
HOPE UR FIRST QUESTION WAS AMAZING!
Step-by-step explanation:
Solve by Substitution :
// Solve equation [2] for the variable x
[2] x = 2y
// Plug this in for variable x in equation [1]
[1] 4•(2y) - y = -11
[1] 7y = -11
// Solve equation [1] for the variable y
[1] 7y = - 11
[1] y = - 11/7
// By now we know this much :
x = 2y
y = -11/7
// Use the y value to solve for x
x = 2(-11/7) = -22/7
Solution :
{x,y} = {-22/7,-11/7} =11
_______ii method __________
Given :
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2x+y=11 -->Equation 1
4x-3y=11 -->Equation 2
Multiplying Equation 1 by 2 to get the same coefficient for x.
We get,
4x+2y=22--> Equation 3
Solving 3 and 2 Equations:
--------------------
4x+2y=22
4x-3y=11(-)
-----------
5y=11
-----------
y=11/5
Substituting y in 1:
--------------
2x+y=11
2x+11/5=11
10x+11=55
10x=44
x=44/10
x=22/5
Hence, x=22/5 and y=11/5
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