Question

solve:
1. 2x + 6 = 100
3
2. 2m - 3 = 5
3
3. 2 (x-9) = 12
4. 5- 6x = 2
3
5. 3x + 12 = 24
6. 6x = 21 - x
7. 4x = 24
7
8. 9 = 3 (x-5)

Answer 1

1. 2x + 6 = 100
2x = 100 - 6
x = 94/2
x = 47

2. 2m - 3 = 5
2m = 5 + 3
m = 8/2
m = 4

3. 2(x - 9) = 12
2x - 18 = 12
2x = 12 + 18
2x = 30
x = 30/2
x = 15

4. 5 - 6x = 2
5 - 2 = 6x
3/6 = x
1/2 = x

5. 3x + 12 = 24
3x = 24 - 12
x = 12/3
x = 4

6. 6x = 21 - x
6x + x = 21
7x = 21
x = 21/7
x = 3

7. 4x = 24
x = 24/4
x = 6

8. 9 = 3(x - 5)
9 = 3x - 15
9 + 15 = 3x
24 = 3x
24/3 = x
8 = x

Answer 2

1.2x - 3=5
☓ =4

2.2m-3=5
M=4
3.2(☓ - 9)=12
2X - 18=12
☓ =30/2=15

4.5-6X =2
-6x =2-5=-3
☓ = - 3/-6=1/3
5.5X+12=24
☓ =12/5

6.6x =21-☓
6x +☓ =21
7x =21
X =21/7=3

7. 4x =24
X =24/4=6

8.9=3(x - 5)
9=3x +15
9-15=3x
-6=3x
X = - 6/3= - 2