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Popular >

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

Solution

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

Solution

x = - 2, y = 1

Solution steps

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

Isolate

x

for

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

Substitute

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

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

Simplify

[\frac{- 7 + 17 y}{2} = 5]

Isolate

y

for

\frac{- 7 + 17 y}{2} = 5 : y = 1

For

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

Substitute

y = 1

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

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

x = - 2

The solutions to the system of equations are:

x = - 2, y = 1

Popular Examples

3 x + y = 2, 7 x - 2 y = 2

a=-18,a^5=9,a^9=0

a = - 18, a^{5} = 9, a^{9} = 0

3x+5y=8,7x-9y=7

3 x + 5 y = 8, 7 x - 9 y = 7

x+2y=-4,3x-2y=20

x + 2 y = - 4, 3 x - 2 y = 20

2 x + 4 y = 8, x + 2 y = 4

Frequently Asked Questions (FAQ)

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