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Popular >

4x+15y=72,2x-3y=-6

Solution

4 x + 15 y = 72, 2 x - 3 y = - 6

Solution

x = 3, y = 4

Solution steps

[4 x + 15 y = 72 2 x - 3 y = - 6]

Isolate

x

for

4 x + 15 y = 72 : x = \frac{72 - 15 y}{4}

Substitute

x = \frac{72 - 15 y}{4}

[2 \cdot \frac{72 - 15 y}{4} - 3 y = - 6]

Simplify

[\frac{72 - 21 y}{2} = - 6]

Isolate

y

for

\frac{72 - 21 y}{2} = - 6 : y = 4

For

x = \frac{72 - 15 y}{4}

Substitute

y = 4

x = \frac{72 - 15 \cdot 4}{4}

\frac{72 - 15 \cdot 4}{4} = 3

x = 3

The solutions to the system of equations are:

x = 3, y = 4

Popular Examples

x+5y=3,3x+10y=1

x + 5 y = 3, 3 x + 10 y = 1

10x+8y=10,10x+12=12

10 x + 8 y = 10, 10 x + 12 = 12

-21n+3y=6,3n-3y=3

- 21 n + 3 y = 6, 3 n - 3 y = 3

y = - 3, x = 7

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

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

Frequently Asked Questions (FAQ)

What is 4x+15y=72,2x-3y=-6 ?
The solution to 4x+15y=72,2x-3y=-6 is x=3,y=4