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Popular >

x+3y=13,3x+y=7

Solution

x + 3 y = 13, 3 x + y = 7

Solution

x = 1, y = 4

Solution steps

[x + 3 y = 13 3 x + y = 7]

Isolate

x

for

x + 3 y = 13 : x = 13 - 3 y

Substitute

x = 13 - 3 y

[3 (13 - 3 y) + y = 7]

Simplify

[39 - 8 y = 7]

Isolate

y

for

39 - 8 y = 7 : y = 4

For

x = 13 - 3 y

Substitute

y = 4

x = 13 - 3 \cdot 4

Simplify

x = 1

The solutions to the system of equations are:

x = 1, y = 4

Popular Examples

3x+2y+z=14,5x-4y-z=4

3 x + 2 y + z = 14, 5 x - 4 y - z = 4

7a+5b=30,2a-3b=18

7 a + 5 b = 30, 2 a - 3 b = 18

4x+7y=41,8x-6y=22

4 x + 7 y = 41, 8 x - 6 y = 22

x-y+2=0,2x+3y-5z=0,3x-4y+21=-1

x - y + 2 = 0, 2 x + 3 y - 5 z = 0, 3 x - 4 y + 21 = - 1

p(x)=x^3+3x^2+3x+1,9(x)=x+2

p (x) = x^{3} + 3 x^{2} + 3 x + 1, 9 (x) = x + 2

Frequently Asked Questions (FAQ)

What is x+3y=13,3x+y=7 ?
The solution to x+3y=13,3x+y=7 is x=1,y=4