Substitution in Algebra, Combine Like Terms, Algebraic Expressions

6+4c-17-7c

-11-3c

11

-2q - 6r + 3y (q = 5 , r = -3 , y = 1)

26

-4r + 2w (r = -2 , w = 9)

1

-5r + 11 (r = 2)

34

10/r + 4t (r = 5 , t = 8)

70

10a (a = 7)

-4

10a - 4b (a = 2 , b= 6)

-39

10a - 5ab - 3b (a = 0.5 , b = 8)

-6

10f - g/3 + fg (f = 0.1 , g = 30)

27

10g - 13 (g = 4)

Evaluate 3x-4 when x=5

11

3+4y+10-3y

13+y

11+2b+6

17+2b

2 + 7x

2 plus the product of x and 7

Evaluate 6r + 9 when r=2

21

6

2a + b (a = 1, b = 4)

-14

2a - 4b (a = 3 , b = 5)

-2

2c - 2d (c = 10, d = 11)

-11

2d + 3 (d = -7)

3m+10+4f-m+9

2m+19+4f

-10

2w + 4r - 9t (w = 3 , r = 5 , t = 4)

-28

2wd + 3w (w = -4 , d = 2)

17

2ws + 5s - 2w (w = 0.5 , s = 3)

Double a number increased by five

2x + 5

The difference of twice a number and five

2x - 5

2x + 3

3 more than twice x

14

3d/4 + 2 (d = 16)

16

3m + p (m = 5, p = 1)

Triple a number increased by twelve

3x + 12

Evaluate 12- c when c= 8

4

7+e+5y-3+4e

4+5e+5y

Evaluate 5y when y=9

45

5.4

4e + eg (e = 0.6 , g = 5)

1.4

4h + 6g - 10gh (h = 0.1 , g = 0.2)

-19

4k + 1 (k = -5)

30

4m + 10 (m = 5)

ten less than the product of 4 and r

4r - 10

-19.2

4r - 6t + 2rt (r = 0.4 , t = 4)

37

4rt - 3t +6r (r = 2 , t = 5)

-7

4t - 7w + 3d (t = 5 , w = 3 , d = -2)

a number times 4 plus 10

4v + 10

The product of 5 and a number

5b

three less than the product of 5 and k

5k-3

59

5t/2 - 3r + 7f (t = 12 , r = 2 , f = 5)

-5

5w (w = -1)

-8

6e - 20 (e = 2)

Evaluate (7u)/9 when u=9

7

3x - 7

7 less than 3 times x

2x + 7

7 more than x doubled

x - 7

7 subtracted from x

Evaluate 63+d when d= 10

73

2a+3b+5a-7b+4y

7a-4b+4y

35

7f (f = 5)

22

7f - 8g (f = 2 , g = -1)

5k-3+3k+8+4d-k

7k+5+4d

45

7y - xy (y = 5 , x = -2)

The quotient of nine and a number

9/y

8m+n+m+8n

9m+9n

2x+3y+7x

9x+3y

The product of nine and a number

9y

Variable

A letter representing an unknown number

7x - 3

Difference of 7 times x and 3

8 / n

Eight divided by a number

5n

Fives times a number

30y - 4

Four less than 30 times y

5n - 1

One less than five times a number

5n - 1

One less than five times n

3n + 6

Six more than three times a number

Like Terms

Terms whose variables and exponents are the same

7x

The product of 7 and x

3x + 7

The sum of 7 and three times x

z + 3

Three more than z

3n - 8

Three times a number minus 8

2n - 2

Two less than two times a number

A letter which stands in place of a number

Variable

The sum of a number and 11

a + 11

3

a/2 (a = 6)

-30

ab (a = 10, b = -3)

-0.4

ab - 6a (a = 0.2 , b = 4)

5

d/3 (d = 15)

Combine

group numbers/letters that are the same

4

h - 11 (h = 15)

48

m - 2 (m = 50)

5 minus n divided by 4

n/4 - 5

2

p/10 (p = 20)

25

s + 4h (s = 13, h = 3)

0

s - 8 (s = 8)

Coefficient

the number in a term next to the variable

w+9j-6+5j-2j

w+12j-6

A number increased by two.

x + 2

Six more than a number

x + 6

14 less than a number

x - 14

the difference of x and 3

x - 3

The sum of half a number and four

x/2 + 4

A number squared

x²

A number decreased by sixteen

y - 16

32 + z

z more than 32