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Popular >

x+3y=7,2x+y=-1

Solution

x + 3 y = 7, 2 x + y = - 1

Solution

x = - 2, y = 3

Solution steps

[x + 3 y = 7 2 x + y = - 1]

Isolate

x

for

x + 3 y = 7 : x = 7 - 3 y

Substitute

x = 7 - 3 y

[2 (7 - 3 y) + y = - 1]

Simplify

[14 - 5 y = - 1]

Isolate

y

for

14 - 5 y = - 1 : y = 3

For

x = 7 - 3 y

Substitute

y = 3

x = 7 - 3 \cdot 3

Simplify

x = - 2

The solutions to the system of equations are:

x = - 2, y = 3

Popular Examples

p(x)=2,x+1x= 1/2

p (x) = 2, x + 1 x = \frac{1}{2}

x + y = 6, 2 x - 3 y = 27

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

27x+54y=21,6-22.5x+45y=90

27 x + 54 y = 21, 6 - 22.5 x + 45 y = 90

8y-8x=30,50x-12y=4

8 y - 8 x = 30, 50 x - 12 y = 4

Frequently Asked Questions (FAQ)

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