Lessons OF MATH 2nd part

LESSON 4-1 TUNE UP EXCERCISES

1- If x + 4x – 3x + 8= 0

R=-4

2- If (9-4) (x+4) = 30, then x =

R= 2

3- If 2(1+5) = 3(w-4), then w=

R= 8

4- If -1= 1-3, then x=

R= -3

5- If 3(x-2) -2x= 7, then x=

R=13

6- If 3x – 6 = 18, then x – 2=

R= 6

7- If 2x + y = y + 14, then x=

R= 7

8- If k= 36, then k=

R=27

9- If x + x + x= 14, then x=

R= 16

10- If 2s + 3t= 12 and 4s=36, then t=

R= -2

11- If 2^x+1= 32, then (x+1)²=

R= 25

12- If = 2, then x+2 =

R= 3

13- If = y + 2, then y=

R= -6

14- If = , then y=

R=21

15- If = 4, then 3y=

R=36

16- If + = 12, then q=

R=

17- If 8 - 3x= 2x + 13, then x=

R= -1

18- If (1-2-3-4)w= (-1)(-2)(-3)(-4) then w=

R= -3

19- If + = 1, then p=

R=

20- If = = , then x + y=

R= 20

LESSON 4-2 TUNE UP EXERCISES

1- If 6= 2x + 4y, what is the value of x + 2y?

R= 3

2- If + = 3, what is the value of 2a + 2b?

R= 12

3- If 2s – 3t= 3t – s, what is s in terms of t?

R= 2t

4- If a + b = 5 and = 3, what is the value of 2a + 2b + 2c?

R= 22

5- If xy + z = y, what is x in terms of y and z?

R=

6- If 4^x+y= 8, what is the value of 2x + 2y?

R= 3

7- If 2x² + 3y²= 0, what is the value of 3x + 2y?

R=0

8.- If a-b/b = 2/3, what is the value of a/b

R=5/3

9.-If /=100, then x=

R= y+2

10.-If 1/ p + q = r and p -q, what is p in terms of r and q?

R= 1-rq / r

11.-If a= 2b = 5c , then 4a is equal to which of the following expressions?

I. 8C

II. 4b + 10c

III. 2b + 15c

R= II AND III ONLY

12.-If a + b + c / 3 = a + b /2, then c=

R= a + b / 2

13.- If wx = z , what is equal to xz?

R= /w