Question

Chapter: Simple linear equations Answer in steps

Answer 1

Explanation:

1. 3(2x - 1) = 21

= 6x - 3 = 21

= 6x = 24

= x = 24/6 = 4

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2. 3(2x+9) = 39

= 6x + 27 = 39

= 6x = 39 - 27

= 6x = 12

= x = 12/6 = 2

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3. 2(4x - 5) = 14

= 8x - 10 = 14

= 8x = 14+10

= x = 3

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Answer 2

6x-3=21

6x=24

x=4

........

6x+27=39

6x=39-27

6x=12

x=2

........

8x-10=14

8x=24

x=3

.........

6+6x=22

6x=22-6

x=3

......

12x-2=28

12x=26

x=3

.....

8-4x=16

-4x=8

x=-2

.....

4x-24=3x-3

4x-3x=24-3

x=21

....

9x+6=6x+12

9x-6x=12-6

3x=6

x=2