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Popular >

x-y=4,x+y=5

Solution

x - y = 4, x + y = 5

Solution

x = \frac{9}{2}, y = \frac{1}{2}

Solution steps

[x - y = 4 x + y = 5]

Isolate

x

for

x - y = 4 : x = 4 + y

Substitute

x = 4 + y

[4 + y + y = 5]

Simplify

[4 + 2 y = 5]

Isolate

y

for

4 + 2 y = 5 : y = \frac{1}{2}

For

x = 4 + y

Substitute

y = \frac{1}{2}

x = 4 + \frac{1}{2}

4 + \frac{1}{2} = \frac{9}{2}

x = \frac{9}{2}

The solutions to the system of equations are:

x = \frac{9}{2}, y = \frac{1}{2}

Popular Examples

x/(4-3)= y/6 , 1/2 x-y=-2

\frac{x}{4 - 3} = \frac{y}{6}, \frac{1}{2} x - y = - 2

2 x + 3 y = 8, x - y = - 1

x+2y-8=2,x+4y=16

x + 2 y - 8 = 2, x + 4 y = 16

3 x = 5, y - 17 = 0

7x-4y=49,5x-y=57

7 x - 4 y = 49, 5 x - y = 57

Frequently Asked Questions (FAQ)

What is x-y=4,x+y=5 ?
The solution to x-y=4,x+y=5 is x= 9/2 ,y= 1/2