Matematika ... 1.) 9x + 1 = 10 x = ... 2.) 4x + 5 = 17 x = ... 3.) 4/5 × 5/x = 20/30 x = ... ​

gustwelchulv – March 09, 2023

...

1.) 9x + 1 = 10
x = ...

2.) 4x + 5 = 17
x = ...

3.) 4/5 × 5/x = 20/30
x = ...
​

9x + 1 = 10

9x = 10 - 1

9x = 9

x = 9/9

x = 1/1

x = 1

4x + 5 = 17

4x = 17 - 5

4x = 12

( 4 ÷ 4 )x = ( 12 ÷ 4 )

1x = ( 12 ÷ 4 )

x = 12/4

x = 3/1

x = 1

4/5 × 5/x = 20/30

4 × 1/x = 20/30

4 × 1/x = 2/3

4x = 2/3

12 = 2x

x = 12/2

x = 6/1

x = 6

9x + 1 = 10

9x = 10 - 1

9x = 9

x = 9/9

x = 1

4x + 5 = 17

4x = 17 - 5

4x = 12

x = 12/4

x = 3

4/5 × 5/x = 20/30

5 × x = 30

x = 30 : 5

x = 6

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