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Popular >

x+y=7,-x+y=3

Solution

x + y = 7, - x + y = 3

Solution

x = 2, y = 5

Solution steps

[x + y = 7 - x + y = 3]

Isolate

x

for

x + y = 7 : x = 7 - y

Substitute

x = 7 - y

[- (7 - y) + y = 3]

Simplify

[- 7 + 2 y = 3]

Isolate

y

for

- 7 + 2 y = 3 : y = 5

For

x = 7 - y

Substitute

y = 5

x = 7 - 5

Simplify

x = 2

The solutions to the system of equations are:

x = 2, y = 5

Popular Examples

x+5y=-21,5x+3y+17=0,-2x+3y=3,4x+y+15=0

x + 5 y = - 21, 5 x + 3 y + 17 = 0, - 2 x + 3 y = 3, 4 x + y + 15 = 0

x^3+8x^2+19x+12=0,x=-4

x^{3} + 8 x^{2} + 19 x + 12 = 0, x = - 4

6x-3y=-1,3x+5y-8=0

6 x - 3 y = - 1, 3 x + 5 y - 8 = 0

x+2y-4=2,x+4y-6=0

x + 2 y - 4 = 2, x + 4 y - 6 = 0

3x-5y=20,6x-10y=-40

3 x - 5 y = 20, 6 x - 10 y = - 40

Frequently Asked Questions (FAQ)

What is x+y=7,-x+y=3 ?
The solution to x+y=7,-x+y=3 is x=2,y=5