9th Grade Abeka Test 1 Algebra I

John is 14 years old. How old will he be in 'b' years?

14+b

3/4 of a number is 12

3/4x=12

Find the value of 3ab - bc if a= 4, b= 3, and c= 2

30

Three times a number less 1 is 20

3x-1=20

Find the value of 4ab if a= 5 and b= 2

40

Combine: 3a+2a-a

4a

Combine: 2b + 3c - b - b + c

4c

Four times a number divided by 3 is 12

4x/3=12

The product of 5 and 'n'

5n

Five times a number plus 4 is 39

5x+4=39

Three less than 5 times a number is 32

5x-3=32

Find the value of xy/z if x= 3, y= 4, and z= 2

6

Combine: 3x + 2y + 5x - y

8x + y

Twice a number less 1/3 of the number equals 15. Find the number.

Equation: 2x - 1/3x = 15 Answer: 22.5 (I'm really not sure about this one. I missed it on the test and worked it out at home. The equation is right though.)

One number is three times another number and their sum is 32. Find the numbers.

Equation: 4x = 32 Answer: 8; 24

Divide 98 into three parts such that the second part is twice the first, and the third part is twice the second.

Equation: 7x = 98 Answer: 14; 28; 56

'a' decreased by 3

a-3

6a + 2a - 1 = 15

a=2

2m + 5 = 25

m=10

3n + 7 - 2 = 8

n=1

1.5n=3.0

n=2

2½x = 10

x=4

3x = 15

x=5

x/2=3

x=6

x-3=6

x=9