It means that each number in the sequence is formed from the previous number by adding d to it.
So, 1, 1+d, 1+2d, 1+3d, etc
or 4, 4+d, 4+2d, 4+3d, etc
Without an equality sign it is no kind of an equation at all.
NEVERMIND!
Not sure what you mean; that equation certainly has a solution.
A quadratic equation.
Iron plus chlorine equals Iron chloride is the word equation.
That's the equation.
x = 0 and y = 4
The summary equation is the formula equation. Sugar equals alcohol plus carbon dioxide. The formula is C6H12O6 which equals 2 CH3CH2OH plus 2 CO2.
cacl2 plus na2s equals cas plus
That word "equals" in there makes it an equation.
If you mean as an equation in the form of 8x+4 = 68 then x equals 8
A linear equation.