Question

for simultaneous equation x-y=2=x+y,the solution (x,y)=?
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Answer 1

Answer:

x=2,y=0

Step-by-step explanation:

x=y+2

y+2+y=2

2y=0

y=0

x-y=2

x-0=2

x=2

Answer 2

Answer:

Step-by-step explanation:

Definition of equation:

There are many different ways to define an equation. The definition of an equation in algebra is a mathematical statement that demonstrates the equality of two mathematical expressions. For instance, the equation 3x + 5 = 14 consists of the two equations 3x + 5 and 14, which are separated by the 'equal' sign. Mathematical algebraic equations typically have one or more variables.

Given:

x - y =2

x + y = 2

Find:

x , y

Solution:

Consider x = 0

Substitute x = 0  in  x + y = 2

Then 0 + y = 2

y = 2

Consider y = 0

Substitute y = 0  in  x - y = 2

Then x - 0 = 2

x = 2

Hence we get two solutions

x =0 , y =2

x = 2 , y = 0

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