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Popular >

11x+5y=7,6x-3y=21

Solution

11 x + 5 y = 7, 6 x - 3 y = 21

Solution

x = 2, y = - 3

Solution steps

[11 x + 5 y = 7 6 x - 3 y = 21]

Isolate

x

for

11 x + 5 y = 7 : x = \frac{7 - 5 y}{11}

Substitute

x = \frac{7 - 5 y}{11}

[6 \cdot \frac{7 - 5 y}{11} - 3 y = 21]

Simplify

[\frac{42 - 63 y}{11} = 21]

Isolate

y

for

\frac{42 - 63 y}{11} = 21 : y = - 3

For

x = \frac{7 - 5 y}{11}

Substitute

y = - 3

x = \frac{7 - 5 ( - 3 )}{11}

\frac{7 - 5 ( - 3 )}{11} = 2

x = 2

The solutions to the system of equations are:

x = 2, y = - 3

Popular Examples

6x+5y=4,0.2x+0.3y=2

6 x + 5 y = 4, 0.2 x + 0.3 y = 2

3 x - y = 5, y = 7 - x

x+3y=12,3x+2y=123

x + 3 y = 12, 3 x + 2 y = 123

7x-3y=31,9x-5y=41

7 x - 3 y = 31, 9 x - 5 y = 41

6x+4y=8,-x-4y=12

6 x + 4 y = 8, - x - 4 y = 12

Frequently Asked Questions (FAQ)

What is 11x+5y=7,6x-3y=21 ?
The solution to 11x+5y=7,6x-3y=21 is x=2,y=-3