Question

Question #bb525

Answer 1

`y=10-x`

Explanation:

`x+y=10`

There is a property, named as Subtraction Property of Equality, which states that if a number is subtracted from both the sides of a equation, then the equation is unaffected.

We are going to use that property.

Subtract `color(red)x` from both sides of the equation.

The equation becomes,
`x+y-color(red)(x)=10-color(red)(x)`
`implies cancelx+y-color(red)cancelcolor(red)(x)=10-color(reD)x`
`implies y=10-x`