X + y = 5
4x + y = 15
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Answered by
2
first we - 2 equation then we got 3 X is equals 10 then from 3 X is equals 10 week 8 x is equals 10 by 3 and Y is equals 5 by 3
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saba659:
Friend I understood the value of x but friend value of y I didn't understand
X is equals 10 by 3 when we put in equation X + Y is equals 5 . after it we write Y is equals 5 - 10 by 3 then we solve it after he got answer of why. we equalise the denominator
Ok thanks friend
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Answered by
1
given
X+Y=5
4x+y=15
change the signs
X+y=5
4x+y=15
- - -
------------------
-3x+0=-10
X=10/3
substitute X= 10/3 in X+y=5
then
10/3+y=5
y= 5-10/3
y=10-5/3
y= 5/3
value of X=10/3
value of Y= 5/3
X+Y=5
4x+y=15
change the signs
X+y=5
4x+y=15
- - -
------------------
-3x+0=-10
X=10/3
substitute X= 10/3 in X+y=5
then
10/3+y=5
y= 5-10/3
y=10-5/3
y= 5/3
value of X=10/3
value of Y= 5/3
Friend from where u got 5/3
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