Do the problem like this:
2a - 15 = -1
Add 15 to both sides:
2a = (-1) + 15
Simplify
2a = 14
Divide by 2 to get the variable by itself:
a = 7
Now, check the problem: 2(7) - 15 = -1
14 - 15 = -1 This is true, so a = 7 is a good solution.
Equals 6
As stated in the question, it equals 1.
It equals 1/2.
It equals 1.
8 pints are equal to a gallon
-1/8 -8*-1/8 = 1
x would equal -1 and y would equal 1
If you meant 'If 1 is equal to 10 then 100 equals to what?' then the answer is: 'any number'.
That equals 1 kg.
It equals 5,280 in feet.
It equals 10,000,001.
It equals my dick