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Popular >

x-y=7,x+3y=5

Solution

x - y = 7, x + 3 y = 5

Solution

x = \frac{13}{2}, y = - \frac{1}{2}

Solution steps

[x - y = 7 x + 3 y = 5]

Isolate

x

for

x - y = 7 : x = 7 + y

Substitute

x = 7 + y

[7 + y + 3 y = 5]

Simplify

[7 + 4 y = 5]

Isolate

y

for

7 + 4 y = 5 : y = - \frac{1}{2}

For

x = 7 + y

Substitute

y = - \frac{1}{2}

x = 7 - \frac{1}{2}

7 - \frac{1}{2} = \frac{13}{2}

x = \frac{13}{2}

The solutions to the system of equations are:

x = \frac{13}{2}, y = - \frac{1}{2}

Popular Examples

4x+15y=72,2x-3y=-6

4 x + 15 y = 72, 2 x - 3 y = - 6

x+5y=3,3x+10y=1

x + 5 y = 3, 3 x + 10 y = 1

10x+8y=10,10x+12=12

10 x + 8 y = 10, 10 x + 12 = 12

-21n+3y=6,3n-3y=3

- 21 n + 3 y = 6, 3 n - 3 y = 3

y = - 3, x = 7

Frequently Asked Questions (FAQ)

What is x-y=7,x+3y=5 ?
The solution to x-y=7,x+3y=5 is x= 13/2 ,y=-1/2