Solve x + 2y = 8 and 2x + y = 10 by substitution method.
Answers
Answered by
6
Step-by-step explanation:
my answer is wrong I did an calculation mistake below answer is right
x+2y=8
X=8-2y
2x+y=10
as we know X = 8-2y we can put it in place of X
(8-2y)×2+y=10
16-4y+y=10
16-3y=10
3y= 10-16= -6
y= -6/3
y= -2
X=8-2×-2
X=8+4
X=12
Answered by
76
Answer:
Let (x + 2y = 8) be equation 1 and (2x + y = 10) be equation 2.
Now multiply equation 1 from 2 and subtract equation 1 in it.
2x + 4y = 16
2x + y = 10
- - -
_________
3y = 6
_________
y = 2
Therefore x=4 and y=2.
Step-by-step explanation:
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