Answer:
3) a. 16
b. 30
c. 22
4) 1
Step-by-step explanation:
3) To solve this problem you must substitute the values of a and b into each expression, as you can see below:
a. [tex]a+2b=2+(2*7)=16[/tex]
b. [tex]6(b-a)=6(7-2)=6(5)=30[/tex]
c. [tex]3(a+b)-5=3(2+7)-5=3(9)-5=27-5=22[/tex]
4) To solve this exercise you must substitute the values of x, y and z into the given expression, as following:
[tex]xz+y=(3*0)+1=0+1=1[/tex]
