Question

3(x-4)=21 value of x
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Answer 1

$\huge\sf\colorbox{yellow}{Solution}$

3(x-4)=21

=> 3x-12 = 21

=> 3x = 21+12

=> 3x = 33

=> x = 33/3

=> x = 11

Answer 2

Step-by-step explanation:

4x-3=2x

4x= 21+3

4x=24

x= 24/4

given is to find 3x-5

=3x-5

= 3(6)-5. ( from eq 1)

18-5

13

3x-5=13

i think it helps you