(5) 5x + 2y = -3; x + 5y = 4
Answers
Answered by
2
ANSWER:
Value of x is (-1) and y is 1.
GIVEN:
5x+2y = (-3)
x+5y = 4
TO FIND:
Value of x and y.
SOLUTION:
=> 5x+2y = (-3). ..(i)
=> x+5y = 4. ..(ii)
Multiplying equation(ii) by 5 we get;
=> 5(x+5y) = 5(4)
=> 5x+25y = 20 ..(iii)
Subtracting equation (I) from equation (iii)
=>( 5x+25y)-(5x+2y) = 20-(-3)
=> 5x-5x+25y-2y= 20+3
=> 23y = 23
=> y = 23/23
=> y = 1
Putting y = 1 in equation (i) we get;
=>5x+2(1)= -3
=> 5x+2 = -3
=> 5x = -3-2
=> x = -5/5
=> x = -1
Value of x is (-1) and y is 1.
Answered by
0
Answer:
x= - 1 , y= 1
Step-by-step explanation:
5x + 2 y = -3 ___ 1 equation
(x + 5y =4) ×5 __2 equation
5x + 2y = - 3
5x + 25y = 20
- - -
-23y = - 23
y = 1
put y in equation 1
5x + 2y = - 3
5x + 2 = - 3
5x = -5
x = - 1
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