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Popular >

x+5y=-21,-2x+3y=3

Solution

x + 5 y = - 21, - 2 x + 3 y = 3

Solution

x = - 6, y = - 3

Solution steps

[x + 5 y = - 21 - 2 x + 3 y = 3]

Isolate

x

for

x + 5 y = - 21 : x = - 21 - 5 y

Substitute

x = - 21 - 5 y

[- 2 (- 21 - 5 y) + 3 y = 3]

Simplify

[42 + 13 y = 3]

Isolate

y

for

42 + 13 y = 3 : y = - 3

For

x = - 21 - 5 y

Substitute

y = - 3

x = - 21 - 5 (- 3)

- 21 - 5 (- 3) = - 6

x = - 6

The solutions to the system of equations are:

x = - 6, y = - 3

Popular Examples

x/(10)+y/5-1=0, x/8+y/6 =2

\frac{x}{10} + \frac{y}{5} - 1 = 0, \frac{x}{8} + \frac{y}{6} = 2

2x+3y=9,-x+y=-2

2 x + 3 y = 9, - x + y = - 2

2 x - y = 0, x + y = 15

8^x=2^{y+1},5^y=25^{x+1}

8^{x} = 2^{y + 1}, 5^{y} = 2 5^{x + 1}

5x_{1}+7x_{2}=3,2x_{1}+4x_{2}=1

5 x_{1} + 7 x_{2} = 3, 2 x_{1} + 4 x_{2} = 1

Frequently Asked Questions (FAQ)

What is x+5y=-21,-2x+3y=3 ?
The solution to x+5y=-21,-2x+3y=3 is x=-6,y=-3