Fill in the blank:
5
If x+y=30 and x-y=20 then x=
Answers
Answered by
1
Answer:
x=25
Step-by-step explanation:
x+y=30
X-Y=20
Adding both equation we get,
2x=50
x=25
Answered by
0
Answer:
25
Step-by-step explanation:
x-y =20
or,x=20+y
putting value of x in first equation
x+y =30
20+y +y=30
2y=30-20
y=10/2
y=5
and
x=20+y
so, x=20+5
x=25
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