Question

If x+y=8, x+z=13, y+w=8, z-w=6 find values of x, y, z and w.​
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Answer 1

Answer:

Step-by-step explanation:

adding equations,y+w=8 and z-w=6,

y+z=14-----1

subtracting equation x+y=8 from x+z=13,

z-y=5-------2

adding 1 and 2,

z+z=19

z=9.5

substituting z=9.5 in 1

y+9.5=14

y=4.5

x+y=8

x=8-4.5

x=3.5

y+w=8

w=8-4.5

w=3.5

Answer 2

Answer:

W=3.5

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