6(-5n+7)=0
We simplify the equation to the form, which is simple to understand
6(-5n+7)=0
Reorder the terms in parentheses
+(-30n+42)=0
Remove unnecessary parentheses
-30n+42=0
We move all terms containing n to the left and all other terms to the right.
-30n=0-42
We simplify left and right side of the equation.
-30n=-42
We divide both sides of the equation by -30 to get n.
n=1.4
Hope this helps!
Step-by-step explanation:
None of these,
a(under root),a, a(square)
this is the correct answer
The double implication "if and only if" is graphically represented by an arrow pointing in both direction, so the correct writing is

I think it would be D that’s what I think
Combine like terms to get