Multiplying positive numbers always comes out positive, no matter how many there are. So you can forget about the positive ones.
Every two negative numbers in a multiplication produce a positive.
Another way to say that is: If the number of negative ones is EVEN,
the answer is positive, and if it's ODD, the answer is negative.
That monster product of eight numbers in problem #12 will be negative,
because there are an odd amount of negative factors in it.
In your equation: a+(-4)=-13
you then add four to each side,
so a= negative 13 plus 4
so a= -9
Answer:
Since the equation is undefined for -2
Therefore, NO SOLUTION for the given equation.
Step-by-step explanation:
Considering the expression
as
so equation becomes
So the following points are undefined
Since the equation is undefined for -2
Therefore, NO SOLUTION for the given equation.
14+5(x+3)-7
14+(5x+15)-7
7+5x+15
5x+22