Answer:
Additive Inverse Property.
Step-by-step explanation:
the value that brings you back to the identity element under addition
So a+-a=0
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Answer:
The equation of the straight line is x - 2y +6 =0
Step-by-step explanation:
<u>Explanation:</u>-
Given a point ( 2, 4) and slope m =
The equation of the straight line passing through the point and having slope 'm'
y - y₁ = m ( x - x₁)
y - 4 = ( x - 2)
2( y -4) = ( x-2)
2 y - 8 = x -2
x - 2 y - 2 + 8 =0
x - 2y + 6 =0
The equation of the straight line is x - 2y +6 =0
Answer:
y=-7
Step-by-step explanation:
-2=y+5
-7=y
Answer:
x+3
Step-by-step explanation:
21=7x3. Hence answer is 3