1.2x + 3 = 4x + 2

How many solutions does the equation have?

2.10p+5 = 18p-6/2

What is the value of p?

3. a-2 = 3+6a/3

what is the value of a?

4.5+r-2=9

What is the value of r?

5.0.61m-1.51m = 9

What is the value of M?

6.-2 (x+1/4) + 1 = 5

Solve for X

7.6f - 12 = - 4f + 6

What is the value of f?

8.3n + 16 = 7n

What is the value of n?

9.1/3m + 3 - 5/6m = - 15

What is the value of m?

1. 2x+3=4x+2

⇒ 4x-2x=3-2

2x=1

x=1/2

There is one solution.

2. 18p-10p=5+6/2

8p=5+3

8p=8

p=8:8

p=1

3. 6a/3=2a

2a-a = - 2 - 3

a = - 5

4. 5+r-2=9,

5-2+r=9

3+r=9

r=9 - 3

r=6

5. - 0,9 m = 9

m = - 10

6. - 2 (x+1/4) = 5-1=4

x+1/4 = - 2

x = - 2 - 1/4

x = - 8/4 - 1/4 = - 9/4

7. 6f+4f = 6 + 12

10 f = 18

f=18/10=1,8

8. 7n - 3n = 16

4n=16

n=16:4

n=4

9. 1/3m-5/6m = - 15 - 3

2/6 m-5/6=-18

- 3/6m=-18 ⇒ 1/2m=18

m=2*18=36