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Popular >

x+y=2,x-y=9

Solution

x + y = 2, x - y = 9

Solution

x = \frac{11}{2}, y = - \frac{7}{2}

Solution steps

[x + y = 2 x - y = 9]

Isolate

x

for

x + y = 2 : x = 2 - y

Substitute

x = 2 - y

[2 - y - y = 9]

Simplify

[2 - 2 y = 9]

Isolate

y

for

2 - 2 y = 9 : y = - \frac{7}{2}

For

x = 2 - y

Substitute

y = - \frac{7}{2}

x = 2 - (- \frac{7}{2})

2 - (- \frac{7}{2}) = \frac{11}{2}

x = \frac{11}{2}

The solutions to the system of equations are:

x = \frac{11}{2}, y = - \frac{7}{2}

Popular Examples

p(x)=3,x^3-4x^2+6x+1x=-29-192

p (x) = 3, x^{3} - 4 x^{2} + 6 x + 1 x = - 29 - 192

3 x = y + 5, x + y = 11

x + y = 7, 5 x - 2 y = - 7

x+2y=3,2x-3y=13

x + 2 y = 3, 2 x - 3 y = 13

x+y=18,2x-3y=150

x + y = 18, 2 x - 3 y = 150

Frequently Asked Questions (FAQ)

What is x+y=2,x-y=9 ?
The solution to x+y=2,x-y=9 is x= 11/2 ,y=-7/2