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Popular >

4x+3y=1,7x-2y=9

Solution

4 x + 3 y = 1, 7 x - 2 y = 9

Solution

x = 1, y = - 1

Solution steps

[4 x + 3 y = 1 7 x - 2 y = 9]

Isolate

x

for

4 x + 3 y = 1 : x = \frac{1 - 3 y}{4}

Substitute

x = \frac{1 - 3 y}{4}

[7 \cdot \frac{1 - 3 y}{4} - 2 y = 9]

Simplify

[\frac{7 - 29 y}{4} = 9]

Isolate

y

for

\frac{7 - 29 y}{4} = 9 : y = - 1

For

x = \frac{1 - 3 y}{4}

Substitute

y = - 1

x = \frac{1 - 3 ( - 1 )}{4}

\frac{1 - 3 ( - 1 )}{4} = 1

x = 1

The solutions to the system of equations are:

x = 1, y = - 1

Popular Examples

x - y = 4, x - 2 y = 9

7x-y=5,21x-3y=10

7 x - y = 5, 21 x - 3 y = 10

-x-2y=10,4x+4y=4

- x - 2 y = 10, 4 x + 4 y = 4

2 x - 3 y = 5, x + 4 y = 1

a = 2, b = 3, c = 4

Frequently Asked Questions (FAQ)

What is 4x+3y=1,7x-2y=9 ?
The solution to 4x+3y=1,7x-2y=9 is x=1,y=-1