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Popular >

3x+5y=9,-3x-8y=-18

Solution

3 x + 5 y = 9, - 3 x - 8 y = - 18

Solution

x = - 2, y = 3

Solution steps

[3 x + 5 y = 9 - 3 x - 8 y = - 18]

Isolate

x

for

3 x + 5 y = 9 : x = \frac{9 - 5 y}{3}

Substitute

x = \frac{9 - 5 y}{3}

[- 3 \cdot \frac{9 - 5 y}{3} - 8 y = - 18]

Simplify

[- 9 - 3 y = - 18]

Isolate

y

for

- 9 - 3 y = - 18 : y = 3

For

x = \frac{9 - 5 y}{3}

Substitute

y = 3

x = \frac{9 - 5 \cdot 3}{3}

\frac{9 - 5 \cdot 3}{3} = - 2

x = - 2

The solutions to the system of equations are:

x = - 2, y = 3

Popular Examples

x+2y=8,-x+3y=17

x + 2 y = 8, - x + 3 y = 17

1y+36x=6y+48,x=1

1 y + 36 x = 6 y + 48, x = 1

3x+5y=16,4x-y=6

3 x + 5 y = 16, 4 x - y = 6

2x+7y-11=3,x-y-5=0

2 x + 7 y - 11 = 3, x - y - 5 = 0

6v^1=1,0.5p(v,x)(v,x)^2=15,0v^2=x,p(v,x)(v,x)^1=5

6 v^{1} = 1, 0.5 p (v, x) (v, x)^{2} = 15, 0 v^{2} = x, p (v, x) (v, x)^{1} = 5

Frequently Asked Questions (FAQ)

What is 3x+5y=9,-3x-8y=-18 ?
The solution to 3x+5y=9,-3x-8y=-18 is x=-2,y=3