Question

solve : 2x+y=10 , x-y=2​

Answer 1

Answer:

x = 4, y = 2

Step-by-step explanation:

2x + y = 10___(1)

x - y = 2

x = 2+y____ (2)

Substituting (2) in (1),

2(2+y) + y = 10

4 + 2y+y = 10

3y = 6

===> y = 6/3 = 2

From (2),

x = 2+y

x = 2+2

x = 4

Hope it helps you friend :)

Answer 2

Answer:

Solve graphically and check:

2x+y=10

x-y=2

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Put both in slope intercept form:

y = -2x + 10

y = x - 2

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Plot a couple of points for each one and draw a line thru each pair.

y = -2x +10

If x=0, y = 10 giving you point (0,10)

If x=1, y = 8 giving you point (1,8)

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Y = x -2

If x = 0, y = -2 giving you point (0,-2)

If x = 1, y = -1 giving you point (1,-1)

Plotting the points

We get

(4, 2)

Means x= 4 and y=2

I hope it helpful