IDNLearn.com: Where your questions are met with thoughtful and precise answers. Ask your questions and receive accurate, in-depth answers from our knowledgeable community members.

Evaluate the expression, using the given value of the variable. z ÷ 2 – 4z + 3(z – 3) when z = 8     A. –17   B. –13   C. –7   D. –1 

Solve for x. 3 • 4 – 3 • 7 = 3(x – 7)   A. 4   B. –10   C. 6   D.         -3

                                                                                                             



Sagot :

[tex]z : 2 - 4z + 3(z - 3)= z\cdot \frac{1}{2} - 4z + 3 z - 9= -\frac{1}{2}z -9 \\ \\ z= 8 \\ \\-\frac{1}{2}z -9 =-\frac{1}{2} \cdot 8 -9 =-4-9=-13 \\ \\ Answer : \ B. \ \ -13[/tex]



[tex]3 \cdot 4 - 3 \cdot 7 = 3(x - 7) \\ \\ 12-21 =3x-21\\ \\3x =12-21+21\\ \\3x=12 \ \ /:3\\ \\ x=4 \\ \\ Answer : \ A. \ \ 4[/tex]


Thank you for using this platform to share and learn. Keep asking and answering. We appreciate every contribution you make. Thank you for choosing IDNLearn.com for your queries. We’re here to provide accurate answers, so visit us again soon.