8z + 3 – 2z

Question

8z + 3 – 2z < 51

tkhunny · Answer

Subtract 3 from both sides.

anonymous · Answer

so subtract 3 from 8 and 51?

anonymous · Answer

Subtract 3 from both sides, add like terms (8z - 2z) and then divide by what's left to get z (6z < 48)

anonymous · Answer

No when you subtract 3 from the left side, it gets eliminated. Never subtract a number with a number and a coeeficient/variable

tkhunny · Answer

Why would you subtract 3 from 8?  There is no "8".  It is "8z".  Combine "like" terms only!

3 - 3 leaves zero on the left.
51 - 3 leaves 48 on the right.

anonymous · Answer

tkhunny im pretty sure i am asking for help so i really dont know why i would. ok

anonymous · Answer

$$8z + 3 -2z <51$$
Subtract 3 from both sides, eliminating 3 on the left side, and giving you 48 on the right.
$$8z -2z < 48$$
Add like terms 
$$6z < 48$$
Final answer is
z <8

anonymous · Answer

When you're dealing with problems dealing with the "<" and ">" signs, remember that you have to switch the sign around when you divide by a negative number. in this case, you didn't have to

anonymous · Answer

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anonymous · Answer

Thank you i have been out of school far to long and math was never my strong subject. appreciate the patience.

anonymous · Answer

ur welcome :)