Hello Student,
Given:
0.5x = y+20
Hence by multiplying both sides by 2,
x= 2y+40
From this equation we can figure out x-2y by just taking the y variable to the other side.
Hence x-2y will give 40.
The answer is 40.
Question : If $x(x+y+z)=20$, $y(x+y+z)=30$, and $z(x+y+z)=50$, then the value of $2(x+y+z)$ is:
Option 1: 20
Option 2: –10
Option 3: 15
Option 4: 18
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