When the sum of 2 unknowns gives us 1 we say: \" X + (1-X) = 1 \" What do we say

Question

When the sum of 2 unknowns gives us 1 we say: " X + (1-X) = 1 "
What do we say when the sum of 3 unknowns gives us 1?
And the sum of 4 unknowns gives us 1 etc....
Can you teach me how to write such equations? When the sum of 2 unknowns gives us 1 we say: " X + (1-X) = 1 "
What do we say when the sum of 3 unknowns gives us 1?
And the sum of 4 unknowns gives us 1 etc....
Can you teach me how to write such equations?
What do we say when the sum of 3 unknowns gives us 1?
And the sum of 4 unknowns gives us 1 etc....
Can you teach me how to write such equations?

Explanation / Answer

Sum of two unknowns equal to 1.

x+y=1

y= 1-x

Sum of three unknowns equal to 1.

x+y+z=1.

z= 1-x-y

Sum of four unknowns equal to 1.

p+q+r+s = 1

...........................

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