Question

How can x + 3 = −2x + 5 be set up as a system of equations?

Answer 1

y = x + 3 and y = -2x + 5

Explanation:

If we consider one set of equation as:

`y = x + 3`

and the other set of equation as:

`y = - 2 x + 5`

Since the left hand side for both these equations is same, therefore we can equate the right hand side and write it as:

`x + 3 = - 2 x + 5`

Answer 2

y = x+3; y = -2x +5

Explanation:

x + 3 = -2x + 5

Let y = x + 3 = -2x + 5

If a = b = c then a=b and a=c

we can write the equation as

y = x + 3 and y = -2x + 5

Thus, this is the system of equations

y = x + 3

y = -2x + 5