what should be added to 15 to get - 15?
2) what should be subracted from -3 to get +18?
Answers
Answer:
To solve this inequality, you want to start with distributing the
2
on the right side. When you do this, you get
15
>
2
d
+
36
−
17
because you have to multiply the
2
by
d
and by
18
.
The next step is to combine like terms on the right side. This means that you would have to subtract
17
from
36
and get
19
. The inequality is now
15
>
2
d
+
19
.
Next, you need to look at your signs on the right side. You must move the
19
over to the left side, and you would do this by subtracting the
19
from the
15
. You would subtract because the
17
is negative. An easy way to remember when you subtract and when you add is simple. You always do the opposite of what the sign of you number is. For example, if I had a
−
19
, I would add it, but if I had a
89
, I would subtract.
Your inequality is now
−
4
>
2
d
.
You always move the numbers with the variable last. In this case, we have a positive
2
with the
d
. The
2
is being multiplied by the
d
, so therefore we would divide the
−
4
by
2
. This gives you the final answer of
−
2
>
d
.
It would be like 15+x=-15
now 15 will come this side.
15+15=x
30=x
then it will be 30