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Popular >

2x+7y=3,5x+4y=-6

Solution

2 x + 7 y = 3, 5 x + 4 y = - 6

Solution

x = - 2, y = 1

Solution steps

[2 x + 7 y = 3 5 x + 4 y = - 6]

Isolate

x

for

2 x + 7 y = 3 : x = \frac{3 - 7 y}{2}

Substitute

x = \frac{3 - 7 y}{2}

[5 \cdot \frac{3 - 7 y}{2} + 4 y = - 6]

Simplify

[\frac{15 - 27 y}{2} = - 6]

Isolate

y

for

\frac{15 - 27 y}{2} = - 6 : y = 1

For

x = \frac{3 - 7 y}{2}

Substitute

y = 1

x = \frac{3 - 7 \cdot 1}{2}

\frac{3 - 7 \cdot 1}{2} = - 2

x = - 2

The solutions to the system of equations are:

x = - 2, y = 1

Popular Examples

2 x - 2 y = 4, x + 6 y = 0

x - 22 x + y = 8, y = 3

c = 10, b = 8

x + y = 6, 2 x - 3 y = 4

3x+4y=1,(2k-1)+(k-1)y=2k+1

3 x + 4 y = 1, (2 k - 1) + (k - 1) y = 2 k + 1

Frequently Asked Questions (FAQ)

What is 2x+7y=3,5x+4y=-6 ?
The solution to 2x+7y=3,5x+4y=-6 is x=-2,y=1