How do you find x when y= -2, -1, 0 and 1 given $2 x + y = 5$ $2x+y=5$ ?

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How do you find x when y= -2, -1, 0 and 1 given $2 x + y = 5$ $2x+y=5$ ?

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Answer 1 · 2018-03-10T22:34:12

$x = \frac{7}{2}, 3, \frac{5}{2}, 2$ $x= 7/2, 3, 5/2, 2$

Explanation:

$y = - 2 \Rightarrow 2 x - 2 = 5 \Rightarrow 2 x = 7 \Rightarrow x = \frac{7}{2}$ $y=-2 rArr 2x-2=5rArr2x=7rArrx=7/2$
$y = - 1 \Rightarrow 2 x - 1 = 5 \Rightarrow 2 x = 6 \Rightarrow x = 3$ $y=-1 rArr 2x-1=5rArr2x=6rArrx=3$
$y = 0 \Rightarrow 2 x + 0 = 5 \Rightarrow 2 x = 5 \Rightarrow x = \frac{5}{2}$ $y=0 rArr 2x+0=5rArr2x=5rArrx=5/2$
$y = 1 \Rightarrow 2 x + 1 = 5 \Rightarrow 2 x = 4 \Rightarrow x = 2$ $y=1 rArr 2x+1=5rArr2x=4rArrx=2$

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How do you find x when y= -2, -1, 0 and 1 given $2 x + y = 5$ $2x+y=5$ ?

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Explanation:

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