are linear equota which of the following in one variable.
a) 2x+2y=48. b) 4x-1=2x+5
Answers
Answered by
0
Answer:
Given equations as :
2
7
x+
2
5
y=5...(1)
4x+2y=7...(2)
From equation (1) we have value of y:
⇒7x+5y=10
⇒5y=10−7x
⇒y=
5
10−7x
Substitute value of y in second equation will have x value:
4x+2(
5
10−7x
)=7
⇒20x+2(10−7x)=35
⇒20x+20−14x=35
⇒6x=15
⇒x=
2
5
Now replacing x value in equation 2nd will get y value
4(
2
5
)+2y=7
⇒20+4y=14
⇒4y=14−20
⇒4y=−6
⇒4y=−6
⇒y=
4
−6
y=
2
−3
Now x−y=
2
5
−(
2
−3
)
=
2
5
+
2
3
=
2
8
=4
Answered by
2
Step-by-step explanation:
answer of the following question Hisar to X + 2 Y divided by each other and it can 40 X Y is equal to 9
answer of second question of the following question his X values and 5 value is there
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