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Popular >

x+y=3,2x-y=12

Solution

x + y = 3, 2 x - y = 12

Solution

x = 5, y = - 2

Solution steps

[x + y = 3 2 x - y = 12]

Isolate

x

for

x + y = 3 : x = 3 - y

Substitute

x = 3 - y

[2 (3 - y) - y = 12]

Simplify

[6 - 3 y = 12]

Isolate

y

for

6 - 3 y = 12 : y = - 2

For

x = 3 - y

Substitute

y = - 2

x = 3 - (- 2)

Simplify

x = 5

The solutions to the system of equations are:

x = 5, y = - 2

Popular Examples

-x+y=-1,-2x+4y=-8

- x + y = - 1, - 2 x + 4 y = - 8

2x+4y+8z=0,x+2y+3y=0,x=0

2 x + 4 y + 8 z = 0, x + 2 y + 3 y = 0, x = 0

((2x+5y))/((xy))=6,((4x-5y))/((xy))=-3

\frac{( 2 x + 5 y )}{( x y )} = 6, \frac{( 4 x - 5 y )}{( x y )} = - 3

2 x + y = 10, y = 3 x

x+y+z=10,3x+2y+z=1,9z=2x

x + y + z = 10, 3 x + 2 y + z = 1, 9 z = 2 x

Frequently Asked Questions (FAQ)

What is x+y=3,2x-y=12 ?
The solution to x+y=3,2x-y=12 is x=5,y=-2