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Popular >

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

Solution

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

Solution

x = 3, y = - 2

Solution steps

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

Isolate

x

for

x + y = 1 : x = 1 - y

Substitute

x = 1 - y

[1 - y + 2 y = - 1]

Simplify

[1 + y = - 1]

Isolate

y

for

1 + y = - 1 : y = - 2

For

x = 1 - y

Substitute

y = - 2

x = 1 - (- 2)

Simplify

x = 3

The solutions to the system of equations are:

x = 3, y = - 2

Popular Examples

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

\frac{( x + 3 )}{y} = 2, \frac{( y + 6 )}{x} = - 1

0 k = \frac{1}{42}, x = 16

3x-2y=5,2x+3y=17

3 x - 2 y = 5, 2 x + 3 y = 17

3x+y+1=0,2x-3y+8=0

3 x + y + 1 = 0, 2 x - 3 y + 8 = 0

l*c*m=16,8h*c*f(c,h,a,b)=1,2a-b=60a+b

l \cdot c \cdot m = 16, 8 h \cdot c \cdot f (c, h, a, b) = 1, 2 a - b = 60 a + b

Frequently Asked Questions (FAQ)

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