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Popular >

5x+2y=30,5x-y=15

Solution

5 x + 2 y = 30, 5 x - y = 15

Solution

x = 4, y = 5

Solution steps

[5 x + 2 y = 30 5 x - y = 15]

Isolate

x

for

5 x + 2 y = 30 : x = \frac{30 - 2 y}{5}

Substitute

x = \frac{30 - 2 y}{5}

[5 \cdot \frac{30 - 2 y}{5} - y = 15]

Simplify

[30 - 3 y = 15]

Isolate

y

for

30 - 3 y = 15 : y = 5

For

x = \frac{30 - 2 y}{5}

Substitute

y = 5

x = \frac{30 - 2 \cdot 5}{5}

\frac{30 - 2 \cdot 5}{5} = 4

x = 4

The solutions to the system of equations are:

x = 4, y = 5

Popular Examples

5x+y=10,5x-2y=10

5 x + y = 10, 5 x - 2 y = 10

y=2+sqrt(4-x),y=-x

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

3x+2y=10,-2x-3y=-5

3 x + 2 y = 10, - 2 x - 3 y = - 5

x + 2 y = 4, 2 x + 3 y = 9

2x+7y=6,-3x-5y=9

2 x + 7 y = 6, - 3 x - 5 y = 9

Frequently Asked Questions (FAQ)

What is 5x+2y=30,5x-y=15 ?
The solution to 5x+2y=30,5x-y=15 is x=4,y=5