Solve by elimination method
11x + 15y = 23
7x - 2y = 20
Answers
Answered by
6
HOLA
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11x + 15y = 23 -- Equation 1
7x - 2y = 20 -- Equation 2
___________________
Multiplying 2 in equation 1 and 15 in equation 2
We have ,
22x + 30y = 46
105x - 30y = 300
__________________
127x - 0 = 254
So , X = 2 -- Equation 3
Substituting 3 in 2
7x - 2y = 20
7(2) - 2y = 20
14 - 2y = 20
2y = 20 - 14 = 6
So we say X = 2 and Y = 3
=====================================
HOPE U UNDERSTAND ❤❤❤❤❤
==================================
11x + 15y = 23 -- Equation 1
7x - 2y = 20 -- Equation 2
___________________
Multiplying 2 in equation 1 and 15 in equation 2
We have ,
22x + 30y = 46
105x - 30y = 300
__________________
127x - 0 = 254
So , X = 2 -- Equation 3
Substituting 3 in 2
7x - 2y = 20
7(2) - 2y = 20
14 - 2y = 20
2y = 20 - 14 = 6
So we say X = 2 and Y = 3
=====================================
HOPE U UNDERSTAND ❤❤❤❤❤
Answered by
5
Answer:
x = 2 and y = -3
Refer the attachments.
Attachments:
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