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Solve a 2 step linear equation algebraically. Show all work and all steps.

1.) 5x+3=23

2.) 42=18-4x

Sagot :

Answer:

1.) x = 4    2.) x = - 6

Step-by-step explanation:

1. 5x + 3 = 23

Isolate the variable. Subtract 3 from both sides.

5x = 20

Divide both sides by 5.

x = 4

____________

2. 42 = 18 - 4x

Isolate the variable. Subtract 18 from both sides.

24 = - 4x

Divide both sides by -4.

x = - 6

mayabrown0

Answer:

1. x = 4

2. x = -6

Step-by-step explanation:

1. 5x + 3 = 23     subtract 3 from both sides

        - 3    -3

--------------------

   5x   =   20            divide 5 from both sides

--------      -------

5                5

x = 4

2. 42 = 18 - 4x     subtract 18 to both sides

    - 18  - 18

---------------------

24  = 4x            divide 4 from both sides

-----     ------

4           4

x = 6

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