Combining like terms with negative coefficients
simplify algebraic expressions by combining like terms. coefficients on some terms are negative.
combine the like terms to make a simpler expression:

−3z−z

Write an introductory paragraph for this corrie ten boom and her family were faced with some difficult choices after hitler came to power. some family members paid the ultimate price. write a carefully thought-out paper of at least 200 words dealing with the following concepts: --how should a christian act when evil is in power? --what do you think it would be like to live in an occupied country? remember to proofread anything you write thoroughly.

What is the measure of ac? 5 units 13 units 26 units 39 units 3x- 2b 6x + 9

The anwser cause i do not understand just plez