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Popular >

-x+y=7,2x+2y=2

Solution

- x + y = 7, 2 x + 2 y = 2

Solution

x = - 3, y = 4

Solution steps

[- x + y = 7 2 x + 2 y = 2]

Isolate

x

for

- x + y = 7 : x = - 7 + y

Substitute

x = - 7 + y

[2 (- 7 + y) + 2 y = 2]

Simplify

[- 14 + 4 y = 2]

Isolate

y

for

- 14 + 4 y = 2 : y = 4

For

x = - 7 + y

Substitute

y = 4

x = - 7 + 4

Simplify

x = - 3

The solutions to the system of equations are:

x = - 3, y = 4

Popular Examples

2x=5,y+43x-2y+16=0

2 x = 5, y + 43 x - 2 y + 16 = 0

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

3x+y=13,5x-2y=7

3 x + y = 13, 5 x - 2 y = 7

x + y = 8, x - y = 2

99x+101y=499,101x+99y=501

99 x + 101 y = 499, 101 x + 99 y = 501

Frequently Asked Questions (FAQ)

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