What is 6x+3y=18,3x+4y=15 ?

The solution to 6x+3y=18,3x+4y=15 is x= 9/5 ,y= 12/5

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6x+3y=18,3x+4y=15

6 x + 3 y = 18, 3 x + 4 y = 15

x = \frac{9}{5}, y = \frac{12}{5}

Solution steps

[6 x + 3 y = 18 3 x + 4 y = 15]

Isolate

x

for

6 x + 3 y = 18 : x = \frac{6 - y}{2}

Substitute

x = \frac{6 - y}{2}

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

Simplify

[\frac{18 + 5 y}{2} = 15]

Isolate

y

for

\frac{18 + 5 y}{2} = 15 : y = \frac{12}{5}

For

x = \frac{6 - y}{2}

Substitute

y = \frac{12}{5}

x = \frac{6 - \frac{12}{5}}{2}

\frac{6 - \frac{12}{5}}{2} = \frac{9}{5}

x = \frac{9}{5}

The solutions to the system of equations are:

x = \frac{9}{5}, y = \frac{12}{5}

0.4 x + 0.3 y = 1.7, 0.7 x - 0.2 y = 0.8

2 (x - 4) = 9 y + 2, x - 6 y = 0

6 x + 7 y = 9, 8 x + 9 y = 11

x + y = 50, 2 x + 4 y = 160

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

What is 6x+3y=18,3x+4y=15 ?
The solution to 6x+3y=18,3x+4y=15 is x= 9/5 ,y= 12/5