Question

(3x-4)=21 find linear equation​

Answer 1

Answer:

Step-by-step explanation:

3x-4=21

3x=21+4   [Sign Changes After Changing Sides]

3x=25

x=25/3   [Multiplication after changing sides becomes division]

x=8 1/3

Answer 2

Answer:

x=8

Step-by-step explanation:

3x-4=12

=3x-4/3=12/3

=x-4=4

=x-4+4=4+4

=x=8

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