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Popular >

x-y=3,6x+y=90

Solution

x - y = 3, 6 x + y = 90

Solution

x = \frac{93}{7}, y = \frac{72}{7}

Solution steps

[x - y = 3 6 x + y = 90]

Isolate

x

for

x - y = 3 : x = 3 + y

Substitute

x = 3 + y

[6 (3 + y) + y = 90]

Simplify

[18 + 7 y = 90]

Isolate

y

for

18 + 7 y = 90 : y = \frac{72}{7}

For

x = 3 + y

Substitute

y = \frac{72}{7}

x = 3 + \frac{72}{7}

3 + \frac{72}{7} = \frac{93}{7}

x = \frac{93}{7}

The solutions to the system of equations are:

x = \frac{93}{7}, y = \frac{72}{7}

Popular Examples

x+3y=52,5x-2y=4

x + 3 y = 52, 5 x - 2 y = 4

2x+3y=3,6y-6x=1

2 x + 3 y = 3, 6 y - 6 x = 1

3x+2y=9,5x+3y=14

3 x + 2 y = 9, 5 x + 3 y = 14

4x+3y=7,5x-4y=32

4 x + 3 y = 7, 5 x - 4 y = 32

x+3y=5,2x-3y=-8

x + 3 y = 5, 2 x - 3 y = - 8

Frequently Asked Questions (FAQ)

What is x-y=3,6x+y=90 ?
The solution to x-y=3,6x+y=90 is x= 93/7 ,y= 72/7