Question

If x/2+y=0.8and 7/{x+y/2}=10 the value of x+y is

Answer 1

Step-by-step explanation:

solving first expression

x/2+y=0.8

x+2y=.16

10x+20y=16

10x+20y-16=0

taking 2 common

5x+10y-8=0

solving second expression

7/(x+y/2)=10

14/(x+y)=10

10x+10y=14

10x+10y-14=0

taking common 2

5x+5y-7=0

Solving

5x+10y-8=0

-5x-5y+7=0

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